2142043401 has 16 divisors (see below), whose sum is σ = 3097821888. Its totient is φ = 1311244800.

The previous prime is 2142043391. The next prime is 2142043403. The reversal of 2142043401 is 1043402412.

It is not a de Polignac number, because 2142043401 - 2⁷ = 2142043273 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2142043403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 510115 + ... + 514296.

It is an arithmetic number, because the mean of its divisors is an integer number (193613868).

Almost surely, 2^2142043401 is an apocalyptic number.

It is an amenable number.

2142043401 is a deficient number, since it is larger than the sum of its proper divisors (955778487).

2142043401 is a wasteful number, since it uses less digits than its factorization.

2142043401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1024472.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 2142043401 is about 46282.2147374129. The cubic root of 2142043401 is about 1289.0687750779.

Adding to 2142043401 its reverse (1043402412), we get a palindrome (3185445813).

The spelling of 2142043401 in words is "two billion, one hundred forty-two million, forty-three thousand, four hundred one".