13531145371 has 2 divisors, whose sum is σ = 13531145372. Its totient is φ = 13531145370.

The previous prime is 13531145311. The next prime is 13531145447. The reversal of 13531145371 is 17354113531.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13531145371 - 2⁹ = 13531144859 is a prime.

It is a super-2 number, since 2×13531145371² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13531145311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6765572685 + 6765572686.

It is an arithmetic number, because the mean of its divisors is an integer number (6765572686).

Almost surely, 2^13531145371 is an apocalyptic number.

13531145371 is a deficient number, since it is larger than the sum of its proper divisors (1).

13531145371 is an equidigital number, since it uses as much as digits as its factorization.

13531145371 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18900, while the sum is 34.

The spelling of 13531145371 in words is "thirteen billion, five hundred thirty-one million, one hundred forty-five thousand, three hundred seventy-one".