102211231123 has 16 divisors (see below), whose sum is σ = 104228467200. Its totient is φ = 100211639616.

The previous prime is 102211231079. The next prime is 102211231127. The reversal of 102211231123 is 321132112201.

It is a cyclic number.

It is not a de Polignac number, because 102211231123 - 2¹⁷ = 102211100051 is a prime.

It is a super-2 number, since 2×102211231123² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 102211231123.

It is not an unprimeable number, because it can be changed into a prime (102211231127) 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, 19855836 + ... + 19860982.

It is an arithmetic number, because the mean of its divisors is an integer number (6514279200).

Almost surely, 2^102211231123 is an apocalyptic number.

102211231123 is a deficient number, since it is larger than the sum of its proper divisors (2017236077).

102211231123 is a wasteful number, since it uses less digits than its factorization.

102211231123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6786.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 102211231123 its reverse (321132112201), we get a palindrome (423343343324).

The spelling of 102211231123 in words is "one hundred two billion, two hundred eleven million, two hundred thirty-one thousand, one hundred twenty-three".