31105190359 has 4 divisors (see below), whose sum is σ = 32177783160. Its totient is φ = 30032597560.

The previous prime is 31105190357. The next prime is 31105190387. The reversal of 31105190359 is 95309150113.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 95309150113 = 1493 ⋅63837341.

It is a cyclic number.

It is not a de Polignac number, because 31105190359 - 2¹ = 31105190357 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 (31105190357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 536296357 + ... + 536296414.

It is an arithmetic number, because the mean of its divisors is an integer number (8044445790).

Almost surely, 2^31105190359 is an apocalyptic number.

31105190359 is a deficient number, since it is larger than the sum of its proper divisors (1072592801).

31105190359 is a wasteful number, since it uses less digits than its factorization.

31105190359 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1072592800.

The product of its (nonzero) digits is 18225, while the sum is 37.

The spelling of 31105190359 in words is "thirty-one billion, one hundred five million, one hundred ninety thousand, three hundred fifty-nine".