1245322011 has 16 divisors (see below), whose sum is σ = 1735202304. Its totient is φ = 793650144.

The previous prime is 1245322009. The next prime is 1245322019. The reversal of 1245322011 is 1102235421.

It is not a de Polignac number, because 1245322011 - 2¹ = 1245322009 is a prime.

It is a super-2 number, since 2×1245322011² = 3101653822162168242, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1245322019) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96636 + ... + 108761.

It is an arithmetic number, because the mean of its divisors is an integer number (108450144).

Almost surely, 2^1245322011 is an apocalyptic number.

1245322011 is a deficient number, since it is larger than the sum of its proper divisors (489880293).

1245322011 is a wasteful number, since it uses less digits than its factorization.

1245322011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205490.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 1245322011 is about 35289.1202922374. The cubic root of 1245322011 is about 1075.8718756224.

Adding to 1245322011 its reverse (1102235421), we get a palindrome (2347557432).

The spelling of 1245322011 in words is "one billion, two hundred forty-five million, three hundred twenty-two thousand, eleven".