10123154540442 has 64 divisors (see below), whose sum is σ = 23653121817600. Its totient is φ = 3204616443840.

The previous prime is 10123154540419. The next prime is 10123154540509. The reversal of 10123154540442 is 24404545132101.

10123154540442 is a `hidden beast` number, since 1 + 0 + 1 + 2 + 31 + 545 + 40 + 4 + 42 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 10123154540397 and 10123154540406.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 52890858 + ... + 53081909.

It is an arithmetic number, because the mean of its divisors is an integer number (369580028400).

Almost surely, 2^{10123154540442} is an apocalyptic number.

10123154540442 is an abundant number, since it is smaller than the sum of its proper divisors (13529967277158).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10123154540442 is a wasteful number, since it uses less digits than its factorization.

10123154540442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105972868 (or 105972862 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 36.

Adding to 10123154540442 its reverse (24404545132101), we get a palindrome (34527699672543).

The spelling of 10123154540442 in words is "ten trillion, one hundred twenty-three billion, one hundred fifty-four million, five hundred forty thousand, four hundred forty-two".