10513531251389 has 2 divisors, whose sum is σ = 10513531251390. Its totient is φ = 10513531251388.

The previous prime is 10513531251383. The next prime is 10513531251449. The reversal of 10513531251389 is 98315213531501.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8736487620025 + 1777043631364 = 2955755^2 + 1333058^2 .

It is a cyclic number.

It is not a de Polignac number, because 10513531251389 - 2¹² = 10513531247293 is a prime.

It is a super-2 number, since 2×10513531251389² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10513531251383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5256765625694 + 5256765625695.

It is an arithmetic number, because the mean of its divisors is an integer number (5256765625695).

Almost surely, 2^{10513531251389} is an apocalyptic number.

It is an amenable number.

10513531251389 is a deficient number, since it is larger than the sum of its proper divisors (1).

10513531251389 is an equidigital number, since it uses as much as digits as its factorization.

10513531251389 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 486000, while the sum is 47.

The spelling of 10513531251389 in words is "ten trillion, five hundred thirteen billion, five hundred thirty-one million, two hundred fifty-one thousand, three hundred eighty-nine".