121130736 has 20 divisors (see below), whose sum is σ = 312921192. Its totient is φ = 40376896.

The previous prime is 121130677. The next prime is 121130743. The reversal of 121130736 is 637031121.

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 1261731 + ... + 1261826.

Almost surely, 2^121130736 is an apocalyptic number.

121130736 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

121130736 is an abundant number, since it is smaller than the sum of its proper divisors (191790456).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121130736 is a wasteful number, since it uses less digits than its factorization.

121130736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2523568 (or 2523562 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 24.

The square root of 121130736 is about 11005.9409411463. The cubic root of 121130736 is about 494.7868156583.

Adding to 121130736 its reverse (637031121), we get a palindrome (758161857).

The spelling of 121130736 in words is "one hundred twenty-one million, one hundred thirty thousand, seven hundred thirty-six".