3123787056145 has 32 divisors (see below), whose sum is σ = 4301263296000. Its totient is φ = 2133436133376.

The previous prime is 3123787056119. The next prime is 3123787056191. The reversal of 3123787056145 is 5416507873213.

It is a cyclic number.

It is not a de Polignac number, because 3123787056145 - 2¹⁷ = 3123786925073 is a prime.

It is a super-2 number, since 2×3123787056145² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3123787056092 and 3123787056101.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8689431 + ... + 9041779.

It is an arithmetic number, because the mean of its divisors is an integer number (134414478000).

Almost surely, 2^{3123787056145} is an apocalyptic number.

3123787056145 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3123787056145 is a deficient number, since it is larger than the sum of its proper divisors (1177476239855).

3123787056145 is a wasteful number, since it uses less digits than its factorization.

3123787056145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353377.

The product of its (nonzero) digits is 4233600, while the sum is 52.

The spelling of 3123787056145 in words is "three trillion, one hundred twenty-three billion, seven hundred eighty-seven million, fifty-six thousand, one hundred forty-five".