431020434411121 has 2 divisors, whose sum is σ = 431020434411122. Its totient is φ = 431020434411120.

The previous prime is 431020434411059. The next prime is 431020434411137. The reversal of 431020434411121 is 121114434020134.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 426136091308096 + 4884343103025 = 20643064^2 + 2210055^2 .

It is a cyclic number.

It is not a de Polignac number, because 431020434411121 - 2²³ = 431020426022513 is a prime.

It is a super-2 number, since 2×431020434411121² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (431020434411821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 215510217205560 + 215510217205561.

It is an arithmetic number, because the mean of its divisors is an integer number (215510217205561).

Almost surely, 2^{431020434411121} is an apocalyptic number.

It is an amenable number.

431020434411121 is a deficient number, since it is larger than the sum of its proper divisors (1).

431020434411121 is an equidigital number, since it uses as much as digits as its factorization.

431020434411121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9216, while the sum is 31.

Adding to 431020434411121 its reverse (121114434020134), we get a palindrome (552134868431255).

The spelling of 431020434411121 in words is "four hundred thirty-one trillion, twenty billion, four hundred thirty-four million, four hundred eleven thousand, one hundred twenty-one".