201213431120431 has 2 divisors, whose sum is σ = 201213431120432. Its totient is φ = 201213431120430.

The previous prime is 201213431120423. The next prime is 201213431120461. The reversal of 201213431120431 is 134021134312102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 201213431120431 - 2³ = 201213431120423 is a prime.

It is a super-2 number, since 2×201213431120431² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 201213431120431.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201213431120461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100606715560215 + 100606715560216.

It is an arithmetic number, because the mean of its divisors is an integer number (100606715560216).

Almost surely, 2^{201213431120431} is an apocalyptic number.

201213431120431 is a deficient number, since it is larger than the sum of its proper divisors (1).

201213431120431 is an equidigital number, since it uses as much as digits as its factorization.

201213431120431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 28.

Adding to 201213431120431 its reverse (134021134312102), we get a palindrome (335234565432533).

The spelling of 201213431120431 in words is "two hundred one trillion, two hundred thirteen billion, four hundred thirty-one million, one hundred twenty thousand, four hundred thirty-one".