120540402542 has 32 divisors (see below), whose sum is σ = 213900963840. Its totient is φ = 49854392640.

The previous prime is 120540402539. The next prime is 120540402551. The reversal of 120540402542 is 245204045021.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 231023 + ... + 542634.

It is an arithmetic number, because the mean of its divisors is an integer number (6684405120).

Almost surely, 2^120540402542 is an apocalyptic number.

120540402542 is a deficient number, since it is larger than the sum of its proper divisors (93360561298).

120540402542 is a wasteful number, since it uses less digits than its factorization.

120540402542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 774056.

The product of its (nonzero) digits is 12800, while the sum is 29.

Adding to 120540402542 its reverse (245204045021), we get a palindrome (365744447563).

The spelling of 120540402542 in words is "one hundred twenty billion, five hundred forty million, four hundred two thousand, five hundred forty-two".