31118139980229 has 4 divisors (see below), whose sum is σ = 41490853306976. Its totient is φ = 20745426653484.

The previous prime is 31118139980219. The next prime is 31118139980243. The reversal of 31118139980229 is 92208993181113.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 31118139980229 - 2⁸ = 31118139979973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31118139980219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5186356663369 + ... + 5186356663374.

It is an arithmetic number, because the mean of its divisors is an integer number (10372713326744).

Almost surely, 2^{31118139980229} is an apocalyptic number.

It is an amenable number.

31118139980229 is a deficient number, since it is larger than the sum of its proper divisors (10372713326747).

31118139980229 is a wasteful number, since it uses less digits than its factorization.

31118139980229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10372713326746.

The product of its (nonzero) digits is 1679616, while the sum is 57.

The spelling of 31118139980229 in words is "thirty-one trillion, one hundred eighteen billion, one hundred thirty-nine million, nine hundred eighty thousand, two hundred twenty-nine".