11201202431 has 2 divisors, whose sum is σ = 11201202432. Its totient is φ = 11201202430.

The previous prime is 11201202421. The next prime is 11201202433. The reversal of 11201202431 is 13420210211.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11201202431 - 2²² = 11197008127 is a prime.

It is a super-2 number, since 2×11201202431² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

Together with 11201202433, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11201202433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5600601215 + 5600601216.

It is an arithmetic number, because the mean of its divisors is an integer number (5600601216).

Almost surely, 2^11201202431 is an apocalyptic number.

11201202431 is a deficient number, since it is larger than the sum of its proper divisors (1).

11201202431 is an equidigital number, since it uses as much as digits as its factorization.

11201202431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 11201202431 its reverse (13420210211), we get a palindrome (24621412642).

The spelling of 11201202431 in words is "eleven billion, two hundred one million, two hundred two thousand, four hundred thirty-one".