121312076 has 24 divisors (see below), whose sum is σ = 220071936. Its totient is φ = 58473360.

The previous prime is 121312069. The next prime is 121312109. The reversal of 121312076 is 670213121.

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, 7781 + ... + 17411.

It is an arithmetic number, because the mean of its divisors is an integer number (9169664).

Almost surely, 2^121312076 is an apocalyptic number.

It is an amenable number.

121312076 is a deficient number, since it is larger than the sum of its proper divisors (98759860).

121312076 is a wasteful number, since it uses less digits than its factorization.

121312076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9749 (or 9747 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 121312076 is about 11014.1761380505. The cubic root of 121312076 is about 495.0336010929.

Adding to 121312076 its reverse (670213121), we get a palindrome (791525197).

The spelling of 121312076 in words is "one hundred twenty-one million, three hundred twelve thousand, seventy-six".