121313530040 has 32 divisors (see below), whose sum is σ = 274249089360. Its totient is φ = 48295430400.

The previous prime is 121313529979. The next prime is 121313530043. The reversal of 121313530040 is 40035313121.

It is a junction number, because it is equal to n+sod(n) for n = 121313529988 and 121313530015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121313530043) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 7178381 + ... + 7195260.

Almost surely, 2^121313530040 is an apocalyptic number.

121313530040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121313530040 is an abundant number, since it is smaller than the sum of its proper divisors (152935559320).

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

121313530040 is a wasteful number, since it uses less digits than its factorization.

121313530040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14373863 (or 14373859 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 23.

Adding to 121313530040 its reverse (40035313121), we get a palindrome (161348843161).

The spelling of 121313530040 in words is "one hundred twenty-one billion, three hundred thirteen million, five hundred thirty thousand, forty".