101142534987 has 24 divisors (see below), whose sum is σ = 159324401600. Its totient is φ = 61453686528.

The previous prime is 101142534979. The next prime is 101142534991. The reversal of 101142534987 is 789435241101.

101142534987 is a `hidden beast` number, since 10 + 1 + 14 + 2 + 534 + 98 + 7 = 666.

It is not a de Polignac number, because 101142534987 - 2³ = 101142534979 is a prime.

It is not an unprimeable number, because it can be changed into a prime (101142534917) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5462062 + ... + 5480547.

Almost surely, 2^101142534987 is an apocalyptic number.

101142534987 is a deficient number, since it is larger than the sum of its proper divisors (58181866613).

101142534987 is a wasteful number, since it uses less digits than its factorization.

101142534987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10942707 (or 10942704 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The spelling of 101142534987 in words is "one hundred one billion, one hundred forty-two million, five hundred thirty-four thousand, nine hundred eighty-seven".