121020023102 has 8 divisors (see below), whose sum is σ = 198032765112. Its totient is φ = 55009101400.

The previous prime is 121020023101. The next prime is 121020023167. The reversal of 121020023102 is 201320020121.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×121020023102² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121020023101) 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, 2750455049 + ... + 2750455092.

It is an arithmetic number, because the mean of its divisors is an integer number (24754095639).

Almost surely, 2^121020023102 is an apocalyptic number.

121020023102 is a deficient number, since it is larger than the sum of its proper divisors (77012742010).

121020023102 is a wasteful number, since it uses less digits than its factorization.

121020023102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5500910154.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 121020023102 its reverse (201320020121), we get a palindrome (322340043223).

The spelling of 121020023102 in words is "one hundred twenty-one billion, twenty million, twenty-three thousand, one hundred two".