101520042115880 has 32 divisors (see below), whose sum is σ = 228479688138600. Its totient is φ = 40597422468096.

The previous prime is 101520042115861. The next prime is 101520042115907. The reversal of 101520042115880 is 88511240025101.

It can be written as a sum of positive squares in 4 ways, for example, as 41544031957156 + 59976010158724 = 6445466^2 + 7744418^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 330919085 + ... + 331225724.

Almost surely, 2^{101520042115880} is an apocalyptic number.

101520042115880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101520042115880 is an abundant number, since it is smaller than the sum of its proper divisors (126959646022720).

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

101520042115880 is a wasteful number, since it uses less digits than its factorization.

101520042115880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 662148653 (or 662148649 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 38.

The spelling of 101520042115880 in words is "one hundred one trillion, five hundred twenty billion, forty-two million, one hundred fifteen thousand, eight hundred eighty".