2120343401 has 4 divisors (see below), whose sum is σ = 2313101904. Its totient is φ = 1927584900.

The previous prime is 2120343371. The next prime is 2120343409. The reversal of 2120343401 is 1043430212.

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 a de Polignac number, because none of the positive numbers 2^k-2120343401 is a prime.

It is a super-2 number, since 2×2120343401² = 8991712276328493602, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2120343409) 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, 96379235 + ... + 96379256.

It is an arithmetic number, because the mean of its divisors is an integer number (578275476).

Almost surely, 2^2120343401 is an apocalyptic number.

It is an amenable number.

2120343401 is a deficient number, since it is larger than the sum of its proper divisors (192758503).

2120343401 is a wasteful number, since it uses less digits than its factorization.

2120343401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192758502.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 2120343401 is about 46047.1866784497. The cubic root of 2120343401 is about 1284.7010161997.

Adding to 2120343401 its reverse (1043430212), we get a palindrome (3163773613).

The spelling of 2120343401 in words is "two billion, one hundred twenty million, three hundred forty-three thousand, four hundred one".