31454844901 has 2 divisors, whose sum is σ = 31454844902. Its totient is φ = 31454844900.

The previous prime is 31454844871. The next prime is 31454844913. The reversal of 31454844901 is 10944845413.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31284411876 + 170433025 = 176874^2 + 13055^2 .

It is a cyclic number.

It is not a de Polignac number, because 31454844901 - 2¹³ = 31454836709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31454844991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15727422450 + 15727422451.

It is an arithmetic number, because the mean of its divisors is an integer number (15727422451).

Almost surely, 2^31454844901 is an apocalyptic number.

It is an amenable number.

31454844901 is a deficient number, since it is larger than the sum of its proper divisors (1).

31454844901 is an equidigital number, since it uses as much as digits as its factorization.

31454844901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 276480, while the sum is 43.

The spelling of 31454844901 in words is "thirty-one billion, four hundred fifty-four million, eight hundred forty-four thousand, nine hundred one".