10513445121 has 24 divisors (see below), whose sum is σ = 15708353024. Its totient is φ = 6768852480.

The previous prime is 10513445101. The next prime is 10513445171. The reversal of 10513445121 is 12154431501.

10513445121 is a `hidden beast` number, since 10 + 5 + 134 + 4 + 512 + 1 = 666.

It is not a de Polignac number, because 10513445121 - 2⁹ = 10513444609 is a prime.

It is a super-2 number, since 2×10513445121² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10513445101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 97185 + ... + 174561.

Almost surely, 2^10513445121 is an apocalyptic number.

It is an amenable number.

10513445121 is a deficient number, since it is larger than the sum of its proper divisors (5194907903).

10513445121 is a wasteful number, since it uses less digits than its factorization.

10513445121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77901 (or 77898 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

Adding to 10513445121 its reverse (12154431501), we get a palindrome (22667876622).

The spelling of 10513445121 in words is "ten billion, five hundred thirteen million, four hundred forty-five thousand, one hundred twenty-one".