121394632669 has 4 divisors (see below), whose sum is σ = 121396250140. Its totient is φ = 121393015200.

The previous prime is 121394632603. The next prime is 121394632783. The reversal of 121394632669 is 966236493121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 61883030169 + 59511602500 = 248763^2 + 243950^2 .

It is a cyclic number.

It is not a de Polignac number, because 121394632669 - 2²⁷ = 121260414941 is a prime.

It is a super-2 number, since 2×121394632669² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121394632169) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 690384 + ... + 848185.

It is an arithmetic number, because the mean of its divisors is an integer number (30349062535).

Almost surely, 2^121394632669 is an apocalyptic number.

It is an amenable number.

121394632669 is a deficient number, since it is larger than the sum of its proper divisors (1617471).

121394632669 is an equidigital number, since it uses as much as digits as its factorization.

121394632669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1617470.

The product of its digits is 2519424, while the sum is 52.

The spelling of 121394632669 in words is "one hundred twenty-one billion, three hundred ninety-four million, six hundred thirty-two thousand, six hundred sixty-nine".