212012142431 has 8 divisors (see below), whose sum is σ = 213794680704. Its totient is φ = 210232091160.

The previous prime is 212012142421. The next prime is 212012142479. The reversal of 212012142431 is 134241210212.

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

It is a cyclic number.

It is not a de Polignac number, because 212012142431 - 2¹⁸ = 212011880287 is a prime.

It is a super-2 number, since 2×212012142431² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212012142397 and 212012142406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212012142421) 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, 450341 + ... + 791726.

It is an arithmetic number, because the mean of its divisors is an integer number (26724335088).

Almost surely, 2^212012142431 is an apocalyptic number.

212012142431 is a deficient number, since it is larger than the sum of its proper divisors (1782538273).

212012142431 is a wasteful number, since it uses less digits than its factorization.

212012142431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1243501.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 212012142431 its reverse (134241210212), we get a palindrome (346253352643).

The spelling of 212012142431 in words is "two hundred twelve billion, twelve million, one hundred forty-two thousand, four hundred thirty-one".