212502971431 has 16 divisors (see below), whose sum is σ = 216966496320. Its totient is φ = 208056808960.

The previous prime is 212502971363. The next prime is 212502971437. The reversal of 212502971431 is 134179205212.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212502971431 is a prime.

It is a super-2 number, since 2×212502971431² (a number of 23 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 (212502971437) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79797006 + ... + 79799668.

It is an arithmetic number, because the mean of its divisors is an integer number (13560406020).

Almost surely, 2^212502971431 is an apocalyptic number.

212502971431 is a deficient number, since it is larger than the sum of its proper divisors (4463524889).

212502971431 is a wasteful number, since it uses less digits than its factorization.

212502971431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5306.

The product of its (nonzero) digits is 30240, while the sum is 37.

It can be divided in two parts, 21250 and 2971431, that added together give a triangular number (2992681 = T₂₄₄₆).

The spelling of 212502971431 in words is "two hundred twelve billion, five hundred two million, nine hundred seventy-one thousand, four hundred thirty-one".