102431401 has 2 divisors, whose sum is σ = 102431402. Its totient is φ = 102431400.

The previous prime is 102431387. The next prime is 102431411. The reversal of 102431401 is 104134201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52940176 + 49491225 = 7276^2 + 7035^2 .

It is a cyclic number.

It is not a de Polignac number, because 102431401 - 2⁵ = 102431369 is a prime.

It is not a weakly prime, because it can be changed into another prime (102431411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51215700 + 51215701.

It is an arithmetic number, because the mean of its divisors is an integer number (51215701).

Almost surely, 2^102431401 is an apocalyptic number.

It is an amenable number.

102431401 is a deficient number, since it is larger than the sum of its proper divisors (1).

102431401 is an equidigital number, since it uses as much as digits as its factorization.

102431401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 102431401 is about 10120.8399354994. The cubic root of 102431401 is about 467.8906546231.

Adding to 102431401 its reverse (104134201), we get a palindrome (206565602).

The spelling of 102431401 in words is "one hundred two million, four hundred thirty-one thousand, four hundred one".