10202323131021 has 16 divisors (see below), whose sum is σ = 15546503435904. Its totient is φ = 5829859075584.

The previous prime is 10202323131001. The next prime is 10202323131029. The reversal of 10202323131021 is 12013132320201.

10202323131021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 10202323131021 - 2¹⁴ = 10202323114637 is a prime.

It is a super-2 number, since 2×10202323131021² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10202323131029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1636405 + ... + 4804421.

It is an arithmetic number, because the mean of its divisors is an integer number (971656464744).

Almost surely, 2^{10202323131021} is an apocalyptic number.

It is an amenable number.

10202323131021 is a deficient number, since it is larger than the sum of its proper divisors (5344180304883).

10202323131021 is a wasteful number, since it uses less digits than its factorization.

10202323131021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3321380.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 10202323131021 its reverse (12013132320201), we get a palindrome (22215455451222).

The spelling of 10202323131021 in words is "ten trillion, two hundred two billion, three hundred twenty-three million, one hundred thirty-one thousand, twenty-one".