121423201102 has 16 divisors (see below), whose sum is σ = 208158933600. Its totient is φ = 52037296128.

The previous prime is 121423201093. The next prime is 121423201111. The reversal of 121423201102 is 201102324121.

It is an interprime number because it is at equal distance from previous prime (121423201093) and next prime (121423201111).

It is a self number, because there is not a number n which added to its sum of digits gives 121423201102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 783774 + ... + 925822.

It is an arithmetic number, because the mean of its divisors is an integer number (13009933350).

Almost surely, 2^121423201102 is an apocalyptic number.

121423201102 is a deficient number, since it is larger than the sum of its proper divisors (86735732498).

121423201102 is a wasteful number, since it uses less digits than its factorization.

121423201102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203115.

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

Adding to 121423201102 its reverse (201102324121), we get a palindrome (322525525223).

The spelling of 121423201102 in words is "one hundred twenty-one billion, four hundred twenty-three million, two hundred one thousand, one hundred two".