2120431401 has 24 divisors (see below), whose sum is σ = 3388357440. Its totient is φ = 1267005600.

The previous prime is 2120431381. The next prime is 2120431427. The reversal of 2120431401 is 1041340212.

It is not a de Polignac number, because 2120431401 - 2⁹ = 2120430889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2120431441) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 143806 + ... + 157863.

It is an arithmetic number, because the mean of its divisors is an integer number (141181560).

Almost surely, 2^2120431401 is an apocalyptic number.

It is an amenable number.

2120431401 is a deficient number, since it is larger than the sum of its proper divisors (1267926039).

2120431401 is a wasteful number, since it uses less digits than its factorization.

2120431401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301757 (or 301754 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 2120431401 is about 46048.1422100827. The cubic root of 2120431401 is about 1284.7187888123.

Adding to 2120431401 its reverse (1041340212), we get a palindrome (3161771613).

It can be divided in two parts, 212043 and 1401, that added together give a square (213444 = 462²).

The spelling of 2120431401 in words is "two billion, one hundred twenty million, four hundred thirty-one thousand, four hundred one".