121317436 has 24 divisors (see below), whose sum is σ = 217503440. Its totient is φ = 59190912.

The previous prime is 121317431. The next prime is 121317437. The reversal of 121317436 is 634713121.

It is a super-2 number, since 2×121317436² = 29435840555228192, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121317431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27136 + ... + 31288.

Almost surely, 2^121317436 is an apocalyptic number.

It is an amenable number.

121317436 is a deficient number, since it is larger than the sum of its proper divisors (96186004).

121317436 is a wasteful number, since it uses less digits than its factorization.

121317436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4333 (or 4331 counting only the distinct ones).

The product of its digits is 3024, while the sum is 28.

The square root of 121317436 is about 11014.4194581467. The cubic root of 121317436 is about 495.0408917686.

The spelling of 121317436 in words is "one hundred twenty-one million, three hundred seventeen thousand, four hundred thirty-six".