2153122042 has 16 divisors (see below), whose sum is σ = 3245928192. Its totient is φ = 1071159120.

The previous prime is 2153122039. The next prime is 2153122043. The reversal of 2153122042 is 2402213512.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2153122043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 378463 + ... + 384109.

It is an arithmetic number, because the mean of its divisors is an integer number (202870512).

Almost surely, 2^2153122042 is an apocalyptic number.

2153122042 is a deficient number, since it is larger than the sum of its proper divisors (1092806150).

2153122042 is a wasteful number, since it uses less digits than its factorization.

2153122042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6573.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 2153122042 is about 46401.7461093869. The cubic root of 2153122042 is about 1291.2873077845.

Adding to 2153122042 its reverse (2402213512), we get a palindrome (4555335554).

The spelling of 2153122042 in words is "two billion, one hundred fifty-three million, one hundred twenty-two thousand, forty-two".