121931248 has 10 divisors (see below), whose sum is σ = 236241824. Its totient is φ = 60965616.

The previous prime is 121931237. The next prime is 121931261. The reversal of 121931248 is 842139121.

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, 3810336 + ... + 3810367.

Almost surely, 2^121931248 is an apocalyptic number.

It is an amenable number.

121931248 is a deficient number, since it is larger than the sum of its proper divisors (114310576).

121931248 is an equidigital number, since it uses as much as digits as its factorization.

121931248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7620711 (or 7620705 counting only the distinct ones).

The product of its digits is 3456, while the sum is 31.

The square root of 121931248 is about 11042.2483217866. The cubic root of 121931248 is about 495.8743828611.

The spelling of 121931248 in words is "one hundred twenty-one million, nine hundred thirty-one thousand, two hundred forty-eight".