1231010011 has 8 divisors (see below), whose sum is σ = 1534765824. Its totient is φ = 959228520.

The previous prime is 1231010003. The next prime is 1231010051. The reversal of 1231010011 is 1100101321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1231010011 - 2³ = 1231010003 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1231010011.

It is not an unprimeable number, because it can be changed into a prime (1231010051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7993495 + ... + 7993648.

It is an arithmetic number, because the mean of its divisors is an integer number (191845728).

Almost surely, 2^1231010011 is an apocalyptic number.

1231010011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1231010011 is a deficient number, since it is larger than the sum of its proper divisors (303755813).

1231010011 is a wasteful number, since it uses less digits than its factorization.

1231010011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15987161.

The product of its (nonzero) digits is 6, while the sum is 10.

The square root of 1231010011 is about 35085.7522507356. The cubic root of 1231010011 is about 1071.7344597713.

Adding to 1231010011 its reverse (1100101321), we get a palindrome (2331111332).

The spelling of 1231010011 in words is "one billion, two hundred thirty-one million, ten thousand, eleven".