2142078431 has 2 divisors, whose sum is σ = 2142078432. Its totient is φ = 2142078430.

The previous prime is 2142078409. The next prime is 2142078437. The reversal of 2142078431 is 1348702412.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2142078431 - 2¹⁰ = 2142077407 is a prime.

It is a super-2 number, since 2×2142078431² = 9177000009110843522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2142078437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1071039215 + 1071039216.

It is an arithmetic number, because the mean of its divisors is an integer number (1071039216).

Almost surely, 2^2142078431 is an apocalyptic number.

2142078431 is a deficient number, since it is larger than the sum of its proper divisors (1).

2142078431 is an equidigital number, since it uses as much as digits as its factorization.

2142078431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 2142078431 is about 46282.5931749724. The cubic root of 2142078431 is about 1289.0758019871.

The spelling of 2142078431 in words is "two billion, one hundred forty-two million, seventy-eight thousand, four hundred thirty-one".