15311950947053 has 2 divisors, whose sum is σ = 15311950947054. Its totient is φ = 15311950947052.

The previous prime is 15311950947019. The next prime is 15311950947107. The reversal of 15311950947053 is 35074905911351.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15275606193604 + 36344753449 = 3908402^2 + 190643^2 .

It is a cyclic number.

It is not a de Polignac number, because 15311950947053 - 2⁶ = 15311950946989 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 15311950946986 and 15311950947004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15311950947653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7655975473526 + 7655975473527.

It is an arithmetic number, because the mean of its divisors is an integer number (7655975473527).

Almost surely, 2^{15311950947053} is an apocalyptic number.

It is an amenable number.

15311950947053 is a deficient number, since it is larger than the sum of its proper divisors (1).

15311950947053 is an equidigital number, since it uses as much as digits as its factorization.

15311950947053 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2551500, while the sum is 53.

The spelling of 15311950947053 in words is "fifteen trillion, three hundred eleven billion, nine hundred fifty million, nine hundred forty-seven thousand, fifty-three".