2120145401 has 32 divisors (see below), whose sum is σ = 2412799488. Its totient is φ = 1846333440.

The previous prime is 2120145389. The next prime is 2120145407. The reversal of 2120145401 is 1045410212.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2120145401 - 2²⁶ = 2053036537 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2120145407) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8249465 + ... + 8249721.

It is an arithmetic number, because the mean of its divisors is an integer number (75399984).

Almost surely, 2^2120145401 is an apocalyptic number.

It is an amenable number.

2120145401 is a deficient number, since it is larger than the sum of its proper divisors (292654087).

2120145401 is a wasteful number, since it uses less digits than its factorization.

2120145401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 581.

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 2120145401 is about 46045.0366597747. The cubic root of 2120145401 is about 1284.6610260234.

Adding to 2120145401 its reverse (1045410212), we get a palindrome (3165555613).

The spelling of 2120145401 in words is "two billion, one hundred twenty million, one hundred forty-five thousand, four hundred one".