121023440102 has 64 divisors (see below), whose sum is σ = 191421014400. Its totient is φ = 57329925120.

The previous prime is 121023440063. The next prime is 121023440149. The reversal of 121023440102 is 201044320121.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 275679599 + ... + 275680037.

It is an arithmetic number, because the mean of its divisors is an integer number (2990953350).

Almost surely, 2^121023440102 is an apocalyptic number.

121023440102 is a deficient number, since it is larger than the sum of its proper divisors (70397574298).

121023440102 is a wasteful number, since it uses less digits than its factorization.

121023440102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1041.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 121023440102 its reverse (201044320121), we get a palindrome (322067760223).

The spelling of 121023440102 in words is "one hundred twenty-one billion, twenty-three million, four hundred forty thousand, one hundred two".