102001213221023 has 4 divisors (see below), whose sum is σ = 102099385708320. Its totient is φ = 101903040733728.

The previous prime is 102001213220989. The next prime is 102001213221041. The reversal of 102001213221023 is 320122312100201.

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 102001213221023 - 2³⁴ = 101984033351839 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102001213220986 and 102001213221004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102001213226023) 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, 49086242090 + ... + 49086244167.

It is an arithmetic number, because the mean of its divisors is an integer number (25524846427080).

Almost surely, 2^{102001213221023} is an apocalyptic number.

102001213221023 is a deficient number, since it is larger than the sum of its proper divisors (98172487297).

102001213221023 is an equidigital number, since it uses as much as digits as its factorization.

102001213221023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98172487296.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 102001213221023 its reverse (320122312100201), we get a palindrome (422123525321224).

The spelling of 102001213221023 in words is "one hundred two trillion, one billion, two hundred thirteen million, two hundred twenty-one thousand, twenty-three".