3123245531 has 16 divisors (see below), whose sum is σ = 3655964928. Its totient is φ = 2612282400.

The previous prime is 3123245519. The next prime is 3123245537. The reversal of 3123245531 is 1355423213.

It is a happy number.

It is not a de Polignac number, because 3123245531 - 2¹⁴ = 3123229147 is a prime.

It is a super-2 number, since 2×3123245531² = 19509325293822943922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3123245494 and 3123245503.

It is not an unprimeable number, because it can be changed into a prime (3123245537) 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, 348041 + ... + 356901.

It is an arithmetic number, because the mean of its divisors is an integer number (228497808).

Almost surely, 2^3123245531 is an apocalyptic number.

3123245531 is a deficient number, since it is larger than the sum of its proper divisors (532719397).

3123245531 is a wasteful number, since it uses less digits than its factorization.

3123245531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10082.

The product of its digits is 10800, while the sum is 29.

The square root of 3123245531 is about 55886.0047865295. The cubic root of 3123245531 is about 1461.7352126349.

Adding to 3123245531 its reverse (1355423213), we get a palindrome (4478668744).

The spelling of 3123245531 in words is "three billion, one hundred twenty-three million, two hundred forty-five thousand, five hundred thirty-one".