121333131040 has 48 divisors (see below), whose sum is σ = 312708574080. Its totient is φ = 44121137920.

The previous prime is 121333131011. The next prime is 121333131043. The reversal of 121333131040 is 40131333121.

It is a super-2 number, since 2×121333131040² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (121333131043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34467880 + ... + 34471399.

It is an arithmetic number, because the mean of its divisors is an integer number (6514761960).

Almost surely, 2^121333131040 is an apocalyptic number.

121333131040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121333131040 is an abundant number, since it is smaller than the sum of its proper divisors (191375443040).

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

121333131040 is a wasteful number, since it uses less digits than its factorization.

121333131040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68939305 (or 68939297 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 121333131040 its reverse (40131333121), we get a palindrome (161464464161).

The spelling of 121333131040 in words is "one hundred twenty-one billion, three hundred thirty-three million, one hundred thirty-one thousand, forty".