101453663521 has 24 divisors (see below), whose sum is σ = 120065474880. Its totient is φ = 85452444000.

The previous prime is 101453663491. The next prime is 101453663567. The reversal of 101453663521 is 125366354101.

It is not a de Polignac number, because 101453663521 - 2²⁹ = 100916792609 is a prime.

It is a super-2 number, since 2×101453663521² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101453663581) 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, 9537876 + ... + 9548506.

It is an arithmetic number, because the mean of its divisors is an integer number (5002728120).

Almost surely, 2^101453663521 is an apocalyptic number.

It is an amenable number.

101453663521 is a deficient number, since it is larger than the sum of its proper divisors (18611811359).

101453663521 is a wasteful number, since it uses less digits than its factorization.

101453663521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14005 (or 13998 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 37.

The spelling of 101453663521 in words is "one hundred one billion, four hundred fifty-three million, six hundred sixty-three thousand, five hundred twenty-one".