105402253031 has 2 divisors, whose sum is σ = 105402253032. Its totient is φ = 105402253030.

The previous prime is 105402253009. The next prime is 105402253043. The reversal of 105402253031 is 130352204501.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-105402253031 is a prime.

It is a super-2 number, since 2×105402253031² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (105402256031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52701126515 + 52701126516.

It is an arithmetic number, because the mean of its divisors is an integer number (52701126516).

Almost surely, 2^105402253031 is an apocalyptic number.

105402253031 is a deficient number, since it is larger than the sum of its proper divisors (1).

105402253031 is an equidigital number, since it uses as much as digits as its factorization.

105402253031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3600, while the sum is 26.

Adding to 105402253031 its reverse (130352204501), we get a palindrome (235754457532).

The spelling of 105402253031 in words is "one hundred five billion, four hundred two million, two hundred fifty-three thousand, thirty-one".