102211131023 has 4 divisors (see below), whose sum is σ = 103736670360. Its totient is φ = 100685591688.

The previous prime is 102211130951. The next prime is 102211131053. The reversal of 102211131023 is 320131112201.

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 102211131023 - 2³⁴ = 85031261839 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102211130992 and 102211131010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102211131053) 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, 762769568 + ... + 762769701.

It is an arithmetic number, because the mean of its divisors is an integer number (25934167590).

Almost surely, 2^102211131023 is an apocalyptic number.

102211131023 is a deficient number, since it is larger than the sum of its proper divisors (1525539337).

102211131023 is an equidigital number, since it uses as much as digits as its factorization.

102211131023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1525539336.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 102211131023 its reverse (320131112201), we get a palindrome (422342243224).

The spelling of 102211131023 in words is "one hundred two billion, two hundred eleven million, one hundred thirty-one thousand, twenty-three".