121674935127 has 4 divisors (see below), whose sum is σ = 162233246840. Its totient is φ = 81116623416.

The previous prime is 121674935119. The next prime is 121674935141. The reversal of 121674935127 is 721539476121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 721539476121 = 3 ⋅240513158707.

It is not a de Polignac number, because 121674935127 - 2³ = 121674935119 is a prime.

It is a super-2 number, since 2×121674935127² (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 (121674935927) 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, 20279155852 + ... + 20279155857.

It is an arithmetic number, because the mean of its divisors is an integer number (40558311710).

Almost surely, 2^121674935127 is an apocalyptic number.

121674935127 is a deficient number, since it is larger than the sum of its proper divisors (40558311713).

121674935127 is an equidigital number, since it uses as much as digits as its factorization.

121674935127 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40558311712.

The product of its digits is 635040, while the sum is 48.

The spelling of 121674935127 in words is "one hundred twenty-one billion, six hundred seventy-four million, nine hundred thirty-five thousand, one hundred twenty-seven".