3121230123011 has 32 divisors (see below), whose sum is σ = 4276267968000. Its totient is φ = 2245040612640.

The previous prime is 3121230123001. The next prime is 3121230123013. The reversal of 3121230123011 is 1103210321213.

It is a happy number.

It is not a de Polignac number, because 3121230123011 - 2²⁶ = 3121163014147 is a prime.

It is a super-2 number, since 2×3121230123011² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3121230123013) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31768421 + ... + 31866518.

It is an arithmetic number, because the mean of its divisors is an integer number (133633374000).

Almost surely, 2^{3121230123011} is an apocalyptic number.

3121230123011 is a deficient number, since it is larger than the sum of its proper divisors (1155037844989).

3121230123011 is a wasteful number, since it uses less digits than its factorization.

3121230123011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63634984 (or 63634970 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 3121230123011 its reverse (1103210321213), we get a palindrome (4224440444224).

The spelling of 3121230123011 in words is "three trillion, one hundred twenty-one billion, two hundred thirty million, one hundred twenty-three thousand, eleven".