1231303101 has 8 divisors (see below), whose sum is σ = 1876271424. Its totient is φ = 703601760.

The previous prime is 1231303079. The next prime is 1231303123. The reversal of 1231303101 is 1013031321.

It is an interprime number because it is at equal distance from previous prime (1231303079) and next prime (1231303123).

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

It is not a de Polignac number, because 1231303101 - 2⁵ = 1231303069 is a prime.

It is a super-2 number, since 2×1231303101² = 3032214653064432402, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231303301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29316720 + ... + 29316761.

It is an arithmetic number, because the mean of its divisors is an integer number (234533928).

Almost surely, 2^1231303101 is an apocalyptic number.

It is an amenable number.

1231303101 is a deficient number, since it is larger than the sum of its proper divisors (644968323).

1231303101 is an equidigital number, since it uses as much as digits as its factorization.

1231303101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58633491.

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 1231303101 is about 35089.9287688077. The cubic root of 1231303101 is about 1071.8195091005.

Adding to 1231303101 its reverse (1013031321), we get a palindrome (2244334422).

The spelling of 1231303101 in words is "one billion, two hundred thirty-one million, three hundred three thousand, one hundred one".