212895152831 has 2 divisors, whose sum is σ = 212895152832. Its totient is φ = 212895152830.

The previous prime is 212895152797. The next prime is 212895152891. The reversal of 212895152831 is 138251598212.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212895152831 is a prime.

It is a super-2 number, since 2×212895152831² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212895152891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106447576415 + 106447576416.

It is an arithmetic number, because the mean of its divisors is an integer number (106447576416).

Almost surely, 2^212895152831 is an apocalyptic number.

212895152831 is a deficient number, since it is larger than the sum of its proper divisors (1).

212895152831 is an equidigital number, since it uses as much as digits as its factorization.

212895152831 is an evil number, because the sum of its binary digits is even.

The product of its digits is 345600, while the sum is 47.

The spelling of 212895152831 in words is "two hundred twelve billion, eight hundred ninety-five million, one hundred fifty-two thousand, eight hundred thirty-one".