213030022072657 has 2 divisors, whose sum is σ = 213030022072658. Its totient is φ = 213030022072656.

The previous prime is 213030022072649. The next prime is 213030022072661. The reversal of 213030022072657 is 756270220030312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 210894554239681 + 2135467832976 = 14522209^2 + 1461324^2 .

It is a cyclic number.

It is not a de Polignac number, because 213030022072657 - 2³ = 213030022072649 is a prime.

It is a super-3 number, since 3×213030022072657³ (a number of 44 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (213030022072667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106515011036328 + 106515011036329.

It is an arithmetic number, because the mean of its divisors is an integer number (106515011036329).

Almost surely, 2^{213030022072657} is an apocalyptic number.

It is an amenable number.

213030022072657 is a deficient number, since it is larger than the sum of its proper divisors (1).

213030022072657 is an equidigital number, since it uses as much as digits as its factorization.

213030022072657 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 211680, while the sum is 40.

The spelling of 213030022072657 in words is "two hundred thirteen trillion, thirty billion, twenty-two million, seventy-two thousand, six hundred fifty-seven".