10521010401023 has 4 divisors (see below), whose sum is σ = 10665133831248. Its totient is φ = 10376886970800.

The previous prime is 10521010400977. The next prime is 10521010401029. The reversal of 10521010401023 is 32010401012501.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10521010401023 - 2²⁸ = 10520741965567 is a prime.

It is a super-2 number, since 2×10521010401023² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10521010400986 and 10521010401004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10521010401029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72061715003 + ... + 72061715148.

It is an arithmetic number, because the mean of its divisors is an integer number (2666283457812).

Almost surely, 2^{10521010401023} is an apocalyptic number.

10521010401023 is a deficient number, since it is larger than the sum of its proper divisors (144123430225).

10521010401023 is an equidigital number, since it uses as much as digits as its factorization.

10521010401023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144123430224.

The product of its (nonzero) digits is 240, while the sum is 20.

Adding to 10521010401023 its reverse (32010401012501), we get a palindrome (42531411413524).

The spelling of 10521010401023 in words is "ten trillion, five hundred twenty-one billion, ten million, four hundred one thousand, twenty-three".