101520023528442 has 48 divisors (see below), whose sum is σ = 219425587992000. Its totient is φ = 31252540940544.

The previous prime is 101520023528309. The next prime is 101520023528489. The reversal of 101520023528442 is 244825320025101.

It is a self number, because there is not a number n which added to its sum of digits gives 101520023528442.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 437251567 + ... + 437483682.

It is an arithmetic number, because the mean of its divisors is an integer number (4571366416500).

Almost surely, 2^{101520023528442} is an apocalyptic number.

101520023528442 is an abundant number, since it is smaller than the sum of its proper divisors (117905564463558).

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

101520023528442 is a wasteful number, since it uses less digits than its factorization.

101520023528442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 874735335 (or 874735306 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 39.

The spelling of 101520023528442 in words is "one hundred one trillion, five hundred twenty billion, twenty-three million, five hundred twenty-eight thousand, four hundred forty-two".