121320774 has 32 divisors (see below), whose sum is σ = 273024000. Its totient is φ = 39926952.

The previous prime is 121320769. The next prime is 121320779. The reversal of 121320774 is 477023121.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (121320769) and next prime (121320779).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121320779) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9954 + ... + 18485.

It is an arithmetic number, because the mean of its divisors is an integer number (8532000).

Almost surely, 2^121320774 is an apocalyptic number.

121320774 is an abundant number, since it is smaller than the sum of its proper divisors (151703226).

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

121320774 is a wasteful number, since it uses less digits than its factorization.

121320774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28529 (or 28523 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

The square root of 121320774 is about 11014.5709857443. The cubic root of 121320774 is about 495.0454320100.

Adding to 121320774 its reverse (477023121), we get a palindrome (598343895).

The spelling of 121320774 in words is "one hundred twenty-one million, three hundred twenty thousand, seven hundred seventy-four".