93220213531 has 2 divisors, whose sum is σ = 93220213532. Its totient is φ = 93220213530.

The previous prime is 93220213529. The next prime is 93220213561. The reversal of 93220213531 is 13531202239.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 93220213531 - 2¹ = 93220213529 is a prime.

It is a super-2 number, since 2×93220213531² (a number of 23 digits) contains 22 as substring.

Together with 93220213529, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 93220213493 and 93220213502.

It is not a weakly prime, because it can be changed into another prime (93220213501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 46610106765 + 46610106766.

It is an arithmetic number, because the mean of its divisors is an integer number (46610106766).

Almost surely, 2^93220213531 is an apocalyptic number.

93220213531 is a deficient number, since it is larger than the sum of its proper divisors (1).

93220213531 is an equidigital number, since it uses as much as digits as its factorization.

93220213531 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9720, while the sum is 31.

The spelling of 93220213531 in words is "ninety-three billion, two hundred twenty million, two hundred thirteen thousand, five hundred thirty-one".