101130440242 has 32 divisors (see below), whose sum is σ = 176237942832. Its totient is φ = 43101087744.

The previous prime is 101130440137. The next prime is 101130440273. The reversal of 101130440242 is 242044031101.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 35250438001 + 65880002241 = 187751^2 + 256671^2 .

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, 2135083 + ... + 2181934.

Almost surely, 2^101130440242 is an apocalyptic number.

101130440242 is a deficient number, since it is larger than the sum of its proper divisors (75107502590).

101130440242 is a wasteful number, since it uses less digits than its factorization.

101130440242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4317102.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 101130440242 its reverse (242044031101), we get a palindrome (343174471343).

The spelling of 101130440242 in words is "one hundred one billion, one hundred thirty million, four hundred forty thousand, two hundred forty-two".