121102019973 has 16 divisors (see below), whose sum is σ = 195720436800. Its totient is φ = 73395163440.

The previous prime is 121102019971. The next prime is 121102019977. The reversal of 121102019973 is 379910201121.

It is not a de Polignac number, because 121102019973 - 2¹ = 121102019971 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121102019971) 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, 203875158 + ... + 203875751.

It is an arithmetic number, because the mean of its divisors is an integer number (12232527300).

Almost surely, 2^121102019973 is an apocalyptic number.

It is an amenable number.

121102019973 is a deficient number, since it is larger than the sum of its proper divisors (74618416827).

121102019973 is a wasteful number, since it uses less digits than its factorization.

121102019973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407750929 (or 407750923 counting only the distinct ones).

The product of its (nonzero) digits is 6804, while the sum is 36.

The spelling of 121102019973 in words is "one hundred twenty-one billion, one hundred two million, nineteen thousand, nine hundred seventy-three".