47231031 has 8 divisors (see below), whose sum is σ = 63019120. Its totient is φ = 31465152.

The previous prime is 47231027. The next prime is 47231033. The reversal of 47231031 is 13013274.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 47231031 - 2² = 47231027 is a prime.

It is a super-2 number, since 2×47231031² = 4461540578645922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 47230989 and 47231007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47231033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 291 + ... + 9723.

It is an arithmetic number, because the mean of its divisors is an integer number (7877390).

Almost surely, 2^47231031 is an apocalyptic number.

47231031 is a deficient number, since it is larger than the sum of its proper divisors (15788089).

47231031 is a wasteful number, since it uses less digits than its factorization.

47231031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11105.

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 47231031 is about 6872.4836122031. The cubic root of 47231031 is about 361.4729543269.

The spelling of 47231031 in words is "forty-seven million, two hundred thirty-one thousand, thirty-one".