31086671029 has 4 divisors (see below), whose sum is σ = 31210522560. Its totient is φ = 30962819500.

The previous prime is 31086670969. The next prime is 31086671041. The reversal of 31086671029 is 92017668013.

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, and also an emirpimes, since its reverse is a distinct semiprime: 92017668013 = 32377 ⋅2842069.

It is a cyclic number.

It is not a de Polignac number, because 31086671029 - 2¹³ = 31086662837 is a prime.

It is a super-2 number, since 2×31086671029² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31086671059) 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, 61925389 + ... + 61925890.

It is an arithmetic number, because the mean of its divisors is an integer number (7802630640).

Almost surely, 2^31086671029 is an apocalyptic number.

It is an amenable number.

31086671029 is a deficient number, since it is larger than the sum of its proper divisors (123851531).

31086671029 is a wasteful number, since it uses less digits than its factorization.

31086671029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123851530.

The product of its (nonzero) digits is 108864, while the sum is 43.

The spelling of 31086671029 in words is "thirty-one billion, eighty-six million, six hundred seventy-one thousand, twenty-nine".