121103312002040 has 32 divisors (see below), whose sum is σ = 276215088340080. Its totient is φ = 47777745007872.

The previous prime is 121103312002033. The next prime is 121103312002051. The reversal of 121103312002040 is 40200213301121.

121103312002040 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 20736865574 + ... + 20736871413.

Almost surely, 2^{121103312002040} is an apocalyptic number.

121103312002040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121103312002040 is an abundant number, since it is smaller than the sum of its proper divisors (155111776338040).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121103312002040 is a wasteful number, since it uses less digits than its factorization.

121103312002040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41473737071 (or 41473737067 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 121103312002040 its reverse (40200213301121), we get a palindrome (161303525303161).

The spelling of 121103312002040 in words is "one hundred twenty-one trillion, one hundred three billion, three hundred twelve million, two thousand, forty".