101012040542 has 32 divisors (see below), whose sum is σ = 174377016000. Its totient is φ = 42987667968.

The previous prime is 101012040539. The next prime is 101012040557. The reversal of 101012040542 is 245040210101.

It is a happy number.

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, 11620934 + ... + 11629622.

It is an arithmetic number, because the mean of its divisors is an integer number (5449281750).

Almost surely, 2^101012040542 is an apocalyptic number.

101012040542 is a deficient number, since it is larger than the sum of its proper divisors (73364975458).

101012040542 is a wasteful number, since it uses less digits than its factorization.

101012040542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14420.

The product of its (nonzero) digits is 320, while the sum is 20.

Adding to 101012040542 its reverse (245040210101), we get a palindrome (346052250643).

The spelling of 101012040542 in words is "one hundred one billion, twelve million, forty thousand, five hundred forty-two".