121392605704 has 16 divisors (see below), whose sum is σ = 241000026300. Its totient is φ = 57125932032.

The previous prime is 121392605681. The next prime is 121392605801. The reversal of 121392605704 is 407506293121.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 121314283204 + 78322500 = 348302^2 + 8850^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 446296209 + ... + 446296480.

Almost surely, 2^121392605704 is an apocalyptic number.

It is an amenable number.

121392605704 is a deficient number, since it is larger than the sum of its proper divisors (119607420596).

121392605704 is a wasteful number, since it uses less digits than its factorization.

121392605704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 892592712 (or 892592708 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 40.

Adding to 121392605704 its reverse (407506293121), we get a palindrome (528898898825).

The spelling of 121392605704 in words is "one hundred twenty-one billion, three hundred ninety-two million, six hundred five thousand, seven hundred four".