102122431102 has 4 divisors (see below), whose sum is σ = 153183646656. Its totient is φ = 51061215550.

The previous prime is 102122431087. The next prime is 102122431109. The reversal of 102122431102 is 201134221201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 201134221201 = 373 ⋅539233837.

It is a self number, because there is not a number n which added to its sum of digits gives 102122431102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102122431109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25530607774 + ... + 25530607777.

It is an arithmetic number, because the mean of its divisors is an integer number (38295911664).

Almost surely, 2^102122431102 is an apocalyptic number.

102122431102 is a deficient number, since it is larger than the sum of its proper divisors (51061215554).

102122431102 is an equidigital number, since it uses as much as digits as its factorization.

102122431102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51061215553.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 102122431102 its reverse (201134221201), we get a palindrome (303256652303).

The spelling of 102122431102 in words is "one hundred two billion, one hundred twenty-two million, four hundred thirty-one thousand, one hundred two".