20411013150521 has 64 divisors (see below), whose sum is σ = 24161874739200. Its totient is φ = 16881464508480.

The previous prime is 20411013150503. The next prime is 20411013150631. The reversal of 20411013150521 is 12505131011402.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20411013150521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20411013150721) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7607532446 + ... + 7607535128.

It is an arithmetic number, because the mean of its divisors is an integer number (377529292800).

Almost surely, 2^{20411013150521} is an apocalyptic number.

It is an amenable number.

20411013150521 is a deficient number, since it is larger than the sum of its proper divisors (3750861588679).

20411013150521 is a wasteful number, since it uses less digits than its factorization.

20411013150521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3954.

The product of its (nonzero) digits is 1200, while the sum is 26.

Adding to 20411013150521 its reverse (12505131011402), we get a palindrome (32916144161923).

The spelling of 20411013150521 in words is "twenty trillion, four hundred eleven billion, thirteen million, one hundred fifty thousand, five hundred twenty-one".