101311903442 has 4 divisors (see below), whose sum is σ = 151967855166. Its totient is φ = 50655951720.

The previous prime is 101311903423. The next prime is 101311903501. The reversal of 101311903442 is 244309113101.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 94937318161 + 6374585281 = 308119^2 + 79841^2 .

It is a super-2 number, since 2×101311903442² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25327975859 + ... + 25327975862.

Almost surely, 2^101311903442 is an apocalyptic number.

101311903442 is a deficient number, since it is larger than the sum of its proper divisors (50655951724).

101311903442 is an equidigital number, since it uses as much as digits as its factorization.

101311903442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50655951723.

The product of its (nonzero) digits is 2592, while the sum is 29.

The spelling of 101311903442 in words is "one hundred one billion, three hundred eleven million, nine hundred three thousand, four hundred forty-two".