6311557738123 has 16 divisors (see below), whose sum is σ = 6889823902080. Its totient is φ = 5734040356800.

The previous prime is 6311557738099. The next prime is 6311557738133. The reversal of 6311557738123 is 3218377551136.

It is a cyclic number.

It is not a de Polignac number, because 6311557738123 - 2²⁹ = 6311020867211 is a prime.

It is a super-2 number, since 2×6311557738123² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6311557738133) 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, 297549988 + ... + 297571198.

It is an arithmetic number, because the mean of its divisors is an integer number (430613993880).

Almost surely, 2^{6311557738123} is an apocalyptic number.

6311557738123 is a deficient number, since it is larger than the sum of its proper divisors (578266163957).

6311557738123 is a wasteful number, since it uses less digits than its factorization.

6311557738123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37578.

The product of its digits is 3175200, while the sum is 52.

The spelling of 6311557738123 in words is "six trillion, three hundred eleven billion, five hundred fifty-seven million, seven hundred thirty-eight thousand, one hundred twenty-three".