121320203102 has 16 divisors (see below), whose sum is σ = 210483245952. Its totient is φ = 51367934040.

The previous prime is 121320203101. The next prime is 121320203119. The reversal of 121320203102 is 201302023121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121320203101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52202024 + ... + 52204347.

It is an arithmetic number, because the mean of its divisors is an integer number (13155202872).

Almost surely, 2^121320203102 is an apocalyptic number.

121320203102 is a deficient number, since it is larger than the sum of its proper divisors (89163042850).

121320203102 is a wasteful number, since it uses less digits than its factorization.

121320203102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104406463.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 121320203102 its reverse (201302023121), we get a palindrome (322622226223).

The spelling of 121320203102 in words is "one hundred twenty-one billion, three hundred twenty million, two hundred three thousand, one hundred two".