40102312097 has 2 divisors, whose sum is σ = 40102312098. Its totient is φ = 40102312096.

The previous prime is 40102312069. The next prime is 40102312199. The reversal of 40102312097 is 79021320104.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27448536976 + 12653775121 = 165676^2 + 112489^2 .

It is a cyclic number.

It is not a de Polignac number, because 40102312097 - 2⁸ = 40102311841 is a prime.

It is not a weakly prime, because it can be changed into another prime (40102332097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20051156048 + 20051156049.

It is an arithmetic number, because the mean of its divisors is an integer number (20051156049).

Almost surely, 2^40102312097 is an apocalyptic number.

It is an amenable number.

40102312097 is a deficient number, since it is larger than the sum of its proper divisors (1).

40102312097 is an equidigital number, since it uses as much as digits as its factorization.

40102312097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 29.

The spelling of 40102312097 in words is "forty billion, one hundred two million, three hundred twelve thousand, ninety-seven".