431401121113 has 2 divisors, whose sum is σ = 431401121114. Its totient is φ = 431401121112.

The previous prime is 431401121093. The next prime is 431401121161. The reversal of 431401121113 is 311121104134.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 431001441049 + 399680064 = 656507^2 + 19992^2 .

It is a cyclic number.

It is not a de Polignac number, because 431401121113 - 2²⁵ = 431367566681 is a prime.

It is a super-2 number, since 2×431401121113² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (431401121213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 215700560556 + 215700560557.

It is an arithmetic number, because the mean of its divisors is an integer number (215700560557).

Almost surely, 2^431401121113 is an apocalyptic number.

It is an amenable number.

431401121113 is a deficient number, since it is larger than the sum of its proper divisors (1).

431401121113 is an equidigital number, since it uses as much as digits as its factorization.

431401121113 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 431401121113 its reverse (311121104134), we get a palindrome (742522225247).

The spelling of 431401121113 in words is "four hundred thirty-one billion, four hundred one million, one hundred twenty-one thousand, one hundred thirteen".