3123140315542 has 64 divisors (see below), whose sum is σ = 5145958895616. Its totient is φ = 1412977737600.

The previous prime is 3123140315483. The next prime is 3123140315549. The reversal of 3123140315542 is 2455130413213.

It is a junction number, because it is equal to n+sod(n) for n = 3123140315498 and 3123140315507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3123140315549) 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, 112560123 + ... + 112587865.

It is an arithmetic number, because the mean of its divisors is an integer number (80405607744).

Almost surely, 2^{3123140315542} is an apocalyptic number.

3123140315542 is a deficient number, since it is larger than the sum of its proper divisors (2022818580074).

3123140315542 is a wasteful number, since it uses less digits than its factorization.

3123140315542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28285.

The product of its (nonzero) digits is 43200, while the sum is 34.

Adding to 3123140315542 its reverse (2455130413213), we get a palindrome (5578270728755).

The spelling of 3123140315542 in words is "three trillion, one hundred twenty-three billion, one hundred forty million, three hundred fifteen thousand, five hundred forty-two".