15211131053 has 2 divisors, whose sum is σ = 15211131054. Its totient is φ = 15211131052.

The previous prime is 15211131041. The next prime is 15211131073. The reversal of 15211131053 is 35013111251.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14110351369 + 1100779684 = 118787^2 + 33178^2 .

It is a cyclic number.

It is not a de Polignac number, because 15211131053 - 2⁶ = 15211130989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15211131073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7605565526 + 7605565527.

It is an arithmetic number, because the mean of its divisors is an integer number (7605565527).

Almost surely, 2^15211131053 is an apocalyptic number.

It is an amenable number.

15211131053 is a deficient number, since it is larger than the sum of its proper divisors (1).

15211131053 is an equidigital number, since it uses as much as digits as its factorization.

15211131053 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 450, while the sum is 23.

The spelling of 15211131053 in words is "fifteen billion, two hundred eleven million, one hundred thirty-one thousand, fifty-three".