121315200132 has 48 divisors (see below), whose sum is σ = 331030633472. Its totient is φ = 33855403680.

The previous prime is 121315200121. The next prime is 121315200133. The reversal of 121315200132 is 231002513121.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 121315200099 and 121315200108.

It is not an unprimeable number, because it can be changed into a prime (121315200133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16789744 + ... + 16796967.

Almost surely, 2^121315200132 is an apocalyptic number.

121315200132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121315200132 is an abundant number, since it is smaller than the sum of its proper divisors (209715433340).

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

121315200132 is a wasteful number, since it uses less digits than its factorization.

121315200132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33586768 (or 33586766 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 21.

Adding to 121315200132 its reverse (231002513121), we get a palindrome (352317713253).

The spelling of 121315200132 in words is "one hundred twenty-one billion, three hundred fifteen million, two hundred thousand, one hundred thirty-two".