10102551300021 has 4 divisors (see below), whose sum is σ = 13470068400032. Its totient is φ = 6735034200012.

The previous prime is 10102551300007. The next prime is 10102551300031. The reversal of 10102551300021 is 12000315520101.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 10102551300021 - 2⁵ = 10102551299989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10102551300001) 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, 1683758550001 + ... + 1683758550006.

It is an arithmetic number, because the mean of its divisors is an integer number (3367517100008).

Almost surely, 2^{10102551300021} is an apocalyptic number.

It is an amenable number.

10102551300021 is a deficient number, since it is larger than the sum of its proper divisors (3367517100011).

10102551300021 is an equidigital number, since it uses as much as digits as its factorization.

10102551300021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3367517100010.

The product of its (nonzero) digits is 300, while the sum is 21.

Adding to 10102551300021 its reverse (12000315520101), we get a palindrome (22102866820122).

The spelling of 10102551300021 in words is "ten trillion, one hundred two billion, five hundred fifty-one million, three hundred thousand, twenty-one".