121326971 has 4 divisors (see below), whose sum is σ = 121774944. Its totient is φ = 120879000.

The previous prime is 121326967. The next prime is 121326973. The reversal of 121326971 is 179623121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 179623121 = 1889 ⋅95089.

It is a cyclic number.

It is not a de Polignac number, because 121326971 - 2² = 121326967 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121326973) 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, 223580 + ... + 224121.

It is an arithmetic number, because the mean of its divisors is an integer number (30443736).

Almost surely, 2^121326971 is an apocalyptic number.

121326971 is a deficient number, since it is larger than the sum of its proper divisors (447973).

121326971 is an equidigital number, since it uses as much as digits as its factorization.

121326971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 447972.

The product of its digits is 4536, while the sum is 32.

The square root of 121326971 is about 11014.8522913383. The cubic root of 121326971 is about 495.0538607515.

The spelling of 121326971 in words is "one hundred twenty-one million, three hundred twenty-six thousand, nine hundred seventy-one".