3121130023111 has 2 divisors, whose sum is σ = 3121130023112. Its totient is φ = 3121130023110.

The previous prime is 3121130023097. The next prime is 3121130023127. The reversal of 3121130023111 is 1113200311213.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3121130023111 - 2³³ = 3112540088519 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3121130023171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1560565011555 + 1560565011556.

It is an arithmetic number, because the mean of its divisors is an integer number (1560565011556).

Almost surely, 2^{3121130023111} is an apocalyptic number.

3121130023111 is a deficient number, since it is larger than the sum of its proper divisors (1).

3121130023111 is an equidigital number, since it uses as much as digits as its factorization.

3121130023111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 3121130023111 its reverse (1113200311213), we get a palindrome (4234330334324).

The spelling of 3121130023111 in words is "three trillion, one hundred twenty-one billion, one hundred thirty million, twenty-three thousand, one hundred eleven".