21312101032967 has 2 divisors, whose sum is σ = 21312101032968. Its totient is φ = 21312101032966.

The previous prime is 21312101032927. The next prime is 21312101032973. The reversal of 21312101032967 is 76923010121312.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21312101032967 - 2²⁰ = 21312099984391 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 21312101032967.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21312101032927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10656050516483 + 10656050516484.

It is an arithmetic number, because the mean of its divisors is an integer number (10656050516484).

Almost surely, 2^{21312101032967} is an apocalyptic number.

21312101032967 is a deficient number, since it is larger than the sum of its proper divisors (1).

21312101032967 is an equidigital number, since it uses as much as digits as its factorization.

21312101032967 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27216, while the sum is 38.

The spelling of 21312101032967 in words is "twenty-one trillion, three hundred twelve billion, one hundred one million, thirty-two thousand, nine hundred sixty-seven".