207137242645231 has 2 divisors, whose sum is σ = 207137242645232. Its totient is φ = 207137242645230.

The previous prime is 207137242645189. The next prime is 207137242645283. The reversal of 207137242645231 is 132546242731702.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 207137242645231 - 2²⁷ = 207137108427503 is a prime.

It is a super-2 number, since 2×207137242645231² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (207137242645331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103568621322615 + 103568621322616.

It is an arithmetic number, because the mean of its divisors is an integer number (103568621322616).

Almost surely, 2^{207137242645231} is an apocalyptic number.

207137242645231 is a deficient number, since it is larger than the sum of its proper divisors (1).

207137242645231 is an equidigital number, since it uses as much as digits as its factorization.

207137242645231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3386880, while the sum is 49.

The spelling of 207137242645231 in words is "two hundred seven trillion, one hundred thirty-seven billion, two hundred forty-two million, six hundred forty-five thousand, two hundred thirty-one".