10521005137 has 2 divisors, whose sum is σ = 10521005138. Its totient is φ = 10521005136.

The previous prime is 10521005129. The next prime is 10521005171. The reversal of 10521005137 is 73150012501.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7460813376 + 3060191761 = 86376^2 + 55319^2 .

It is a cyclic number.

It is not a de Polignac number, because 10521005137 - 2³ = 10521005129 is a prime.

It is a super-2 number, since 2×10521005137² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (10521005107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5260502568 + 5260502569.

It is an arithmetic number, because the mean of its divisors is an integer number (5260502569).

Almost surely, 2^10521005137 is an apocalyptic number.

It is an amenable number.

10521005137 is a deficient number, since it is larger than the sum of its proper divisors (1).

10521005137 is an equidigital number, since it uses as much as digits as its factorization.

10521005137 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1050, while the sum is 25.

Adding to 10521005137 its reverse (73150012501), we get a palindrome (83671017638).

The spelling of 10521005137 in words is "ten billion, five hundred twenty-one million, five thousand, one hundred thirty-seven".