121677371 has 4 divisors (see below), whose sum is σ = 123672144. Its totient is φ = 119682600.

The previous prime is 121677343. The next prime is 121677377. The reversal of 121677371 is 173776121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 173776121 = 71 ⋅2447551.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121677371 is a prime.

It is a super-2 number, since 2×121677371² = 29610765226943282, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121677377) 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 3 ways as a sum of consecutive naturals, for example, 997295 + ... + 997416.

It is an arithmetic number, because the mean of its divisors is an integer number (30918036).

Almost surely, 2^121677371 is an apocalyptic number.

121677371 is a deficient number, since it is larger than the sum of its proper divisors (1994773).

121677371 is an equidigital number, since it uses as much as digits as its factorization.

121677371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1994772.

The product of its digits is 12348, while the sum is 35.

The square root of 121677371 is about 11030.7466202429. The cubic root of 121677371 is about 495.5299850195.

It can be divided in two parts, 1216 and 77371, that added together give a palindrome (78587).

The spelling of 121677371 in words is "one hundred twenty-one million, six hundred seventy-seven thousand, three hundred seventy-one".