121311371 has 32 divisors (see below), whose sum is σ = 141419520. Its totient is φ = 103334400.

The previous prime is 121311349. The next prime is 121311413. The reversal of 121311371 is 173113121.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121311371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121311341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 925976 + ... + 926106.

It is an arithmetic number, because the mean of its divisors is an integer number (4419360).

Almost surely, 2^121311371 is an apocalyptic number.

121311371 is a deficient number, since it is larger than the sum of its proper divisors (20108149).

121311371 is a wasteful number, since it uses less digits than its factorization.

121311371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275.

The product of its digits is 126, while the sum is 20.

The square root of 121311371 is about 11014.1441337945. The cubic root of 121311371 is about 495.0326421354.

Adding to 121311371 its reverse (173113121), we get a palindrome (294424492).

The spelling of 121311371 in words is "one hundred twenty-one million, three hundred eleven thousand, three hundred seventy-one".