2120993 has 4 divisors (see below), whose sum is σ = 2424000. Its totient is φ = 1817988.

The previous prime is 2120981. The next prime is 2121011. The reversal of 2120993 is 3990212.

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.

It is a cyclic number.

It is not a de Polignac number, because 2120993 - 2⁴ = 2120977 is a prime.

It is a super-2 number, since 2×2120993² = 8997222612098, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2120933) 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, 151493 + ... + 151506.

It is an arithmetic number, because the mean of its divisors is an integer number (606000).

2^2120993 is an apocalyptic number.

It is an amenable number.

2120993 is a deficient number, since it is larger than the sum of its proper divisors (303007).

2120993 is an equidigital number, since it uses as much as digits as its factorization.

2120993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303006.

The product of its (nonzero) digits is 972, while the sum is 26.

The square root of 2120993 is about 1456.3629355350. The cubic root of 2120993 is about 128.4832198612.

It can be divided in two parts, 2120 and 993, that added together give a palindrome (3113).

The spelling of 2120993 in words is "two million, one hundred twenty thousand, nine hundred ninety-three".