431145252101 has 2 divisors, whose sum is σ = 431145252102. Its totient is φ = 431145252100.

The previous prime is 431145252079. The next prime is 431145252103. The reversal of 431145252101 is 101252541134.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 268251484900 + 162893767201 = 517930^2 + 403601^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-431145252101 is a prime.

Together with 431145252103, 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 (431145252103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 215572626050 + 215572626051.

It is an arithmetic number, because the mean of its divisors is an integer number (215572626051).

Almost surely, 2^431145252101 is an apocalyptic number.

It is an amenable number.

431145252101 is a deficient number, since it is larger than the sum of its proper divisors (1).

431145252101 is an equidigital number, since it uses as much as digits as its factorization.

431145252101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4800, while the sum is 29.

Adding to 431145252101 its reverse (101252541134), we get a palindrome (532397793235).

The spelling of 431145252101 in words is "four hundred thirty-one billion, one hundred forty-five million, two hundred fifty-two thousand, one hundred one".