121310285392 has 20 divisors (see below), whose sum is σ = 235052021556. Its totient is φ = 60651699200.

The previous prime is 121310285333. The next prime is 121310285413. The reversal of 121310285392 is 293582013121.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 96382927936 + 24927357456 = 310456^2 + 157884^2 .

It is a super-4 number, since 4×121310285392⁴ (a number of 45 digits) contains 4444 as substring.

It is a congruent number.

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, 88398 + ... + 500434.

Almost surely, 2^121310285392 is an apocalyptic number.

It is an amenable number.

121310285392 is a deficient number, since it is larger than the sum of its proper divisors (113741736164).

121310285392 is a wasteful number, since it uses less digits than its factorization.

121310285392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430446 (or 430440 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 37.

The spelling of 121310285392 in words is "one hundred twenty-one billion, three hundred ten million, two hundred eighty-five thousand, three hundred ninety-two".