121186141924 has 27 divisors (see below), whose sum is σ = 223849532361. Its totient is φ = 57397695840.

The previous prime is 121186141883. The next prime is 121186141927. The reversal of 121186141924 is 429141681121.

It is a happy number.

The square root of 121186141924 is 348118.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 40393764324 + 80792377600 = 200982^2 + 284240^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121186141927) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 13223904 + ... + 13233064.

Almost surely, 2^121186141924 is an apocalyptic number.

121186141924 is the 348118-th square number.

It is an amenable number.

121186141924 is a deficient number, since it is larger than the sum of its proper divisors (102663390437).

121186141924 is an frugal number, since it uses more digits than its factorization.

121186141924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18364 (or 9182 counting only the distinct ones).

The product of its digits is 27648, while the sum is 40.

The spelling of 121186141924 in words is "one hundred twenty-one billion, one hundred eighty-six million, one hundred forty-one thousand, nine hundred twenty-four".