121431514152 has 32 divisors (see below), whose sum is σ = 326931000480. Its totient is φ = 37363542720.

The previous prime is 121431514151. The next prime is 121431514181. The reversal of 121431514152 is 251415134121.

121431514152 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×121431514152² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (121431514151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 194601474 + ... + 194602097.

It is an arithmetic number, because the mean of its divisors is an integer number (10216593765).

Almost surely, 2^121431514152 is an apocalyptic number.

121431514152 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121431514152 is an abundant number, since it is smaller than the sum of its proper divisors (205499486328).

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

121431514152 is a wasteful number, since it uses less digits than its factorization.

121431514152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 389203593 (or 389203589 counting only the distinct ones).

The product of its digits is 4800, while the sum is 30.

Adding to 121431514152 its reverse (251415134121), we get a palindrome (372846648273).

The spelling of 121431514152 in words is "one hundred twenty-one billion, four hundred thirty-one million, five hundred fourteen thousand, one hundred fifty-two".