93213121 has 4 divisors (see below), whose sum is σ = 95380912. Its totient is φ = 91045332.

The previous prime is 93213119. The next prime is 93213137. The reversal of 93213121 is 12131239.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12131239 = 199 ⋅60961.

It is a cyclic number.

It is not a de Polignac number, because 93213121 - 2¹ = 93213119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 93213092 and 93213101.

It is not an unprimeable number, because it can be changed into a prime (93213151) 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, 1083831 + ... + 1083916.

It is an arithmetic number, because the mean of its divisors is an integer number (23845228).

Almost surely, 2^93213121 is an apocalyptic number.

It is an amenable number.

93213121 is a deficient number, since it is larger than the sum of its proper divisors (2167791).

93213121 is a wasteful number, since it uses less digits than its factorization.

93213121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2167790.

The product of its digits is 324, while the sum is 22.

The square root of 93213121 is about 9654.6942468418. The cubic root of 93213121 is about 453.4113107766.

The spelling of 93213121 in words is "ninety-three million, two hundred thirteen thousand, one hundred twenty-one".