120812308 has 6 divisors (see below), whose sum is σ = 211421546. Its totient is φ = 60406152.

The previous prime is 120812287. The next prime is 120812357. The reversal of 120812308 is 803218021.

It can be written as a sum of positive squares in only one way, i.e., 83210884 + 37601424 = 9122^2 + 6132^2 .

It is a super-2 number, since 2×120812308² = 29191227528573728, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15101535 + ... + 15101542.

Almost surely, 2^120812308 is an apocalyptic number.

It is an amenable number.

120812308 is a deficient number, since it is larger than the sum of its proper divisors (90609238).

120812308 is a wasteful number, since it uses less digits than its factorization.

120812308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30203081 (or 30203079 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 25.

The square root of 120812308 is about 10991.4652344444. The cubic root of 120812308 is about 494.3528706432.

The spelling of 120812308 in words is "one hundred twenty million, eight hundred twelve thousand, three hundred eight".