101231540004042 has 128 divisors (see below), whose sum is σ = 272224360396800. Its totient is φ = 27221417411328.

The previous prime is 101231540003989. The next prime is 101231540004073. The reversal of 101231540004042 is 240400045132101.

101231540004042 is a `hidden beast` number, since 1 + 0 + 12 + 31 + 540 + 0 + 0 + 40 + 42 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 101231540003997 and 101231540004015.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 450600913 + ... + 450825515.

It is an arithmetic number, because the mean of its divisors is an integer number (2126752815600).

Almost surely, 2^{101231540004042} is an apocalyptic number.

101231540004042 is an abundant number, since it is smaller than the sum of its proper divisors (170992820392758).

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

101231540004042 is a wasteful number, since it uses less digits than its factorization.

101231540004042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294777 (or 294771 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

Adding to 101231540004042 its reverse (240400045132101), we get a palindrome (341631585136143).

The spelling of 101231540004042 in words is "one hundred one trillion, two hundred thirty-one billion, five hundred forty million, four thousand, forty-two".