121312203132 has 24 divisors (see below), whose sum is σ = 286644870400. Its totient is φ = 39925534896.

The previous prime is 121312203127. The next prime is 121312203163. The reversal of 121312203132 is 231302213121.

It is a junction number, because it is equal to n+sod(n) for n = 121312203099 and 121312203108.

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, 63982282 + ... + 63984177.

Almost surely, 2^121312203132 is an apocalyptic number.

121312203132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121312203132 is an abundant number, since it is smaller than the sum of its proper divisors (165332667268).

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

121312203132 is a wasteful number, since it uses less digits than its factorization.

121312203132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127966545 (or 127966543 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 121312203132 its reverse (231302213121), we get a palindrome (352614416253).

The spelling of 121312203132 in words is "one hundred twenty-one billion, three hundred twelve million, two hundred three thousand, one hundred thirty-two".