121311302132 has 24 divisors (see below), whose sum is σ = 212620747080. Its totient is φ = 60562575360.

The previous prime is 121311302093. The next prime is 121311302207. The reversal of 121311302132 is 231203113121.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 78728503396 + 42582798736 = 280586^2 + 206356^2 .

It is a super-3 number, since 3×121311302132³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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, 11785244 + ... + 11795532.

It is an arithmetic number, because the mean of its divisors is an integer number (8859197795).

Almost surely, 2^121311302132 is an apocalyptic number.

It is an amenable number.

121311302132 is a deficient number, since it is larger than the sum of its proper divisors (91309444948).

121311302132 is a wasteful number, since it uses less digits than its factorization.

121311302132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14531 (or 14529 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 121311302132 its reverse (231203113121), we get a palindrome (352514415253).

The spelling of 121311302132 in words is "one hundred twenty-one billion, three hundred eleven million, three hundred two thousand, one hundred thirty-two".