102411431 has 2 divisors, whose sum is σ = 102411432. Its totient is φ = 102411430.

The previous prime is 102411427. The next prime is 102411457. The reversal of 102411431 is 134114201.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 102411431 - 2² = 102411427 is a prime.

It is a super-2 number, since 2×102411431² = 20976202398935522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102411401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51205715 + 51205716.

It is an arithmetic number, because the mean of its divisors is an integer number (51205716).

Almost surely, 2^102411431 is an apocalyptic number.

102411431 is a deficient number, since it is larger than the sum of its proper divisors (1).

102411431 is an equidigital number, since it uses as much as digits as its factorization.

102411431 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.

The square root of 102411431 is about 10119.8533092135. The cubic root of 102411431 is about 467.8602460323.

Adding to 102411431 its reverse (134114201), we get a palindrome (236525632).

The spelling of 102411431 in words is "one hundred two million, four hundred eleven thousand, four hundred thirty-one".