31141378051 has 4 divisors (see below), whose sum is σ = 35590146352. Its totient is φ = 26692609752.

The previous prime is 31141378019. The next prime is 31141378127. The reversal of 31141378051 is 15087314113.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15087314113 = 53959 ⋅279607.

It is a cyclic number.

It is not a de Polignac number, because 31141378051 - 2⁵ = 31141378019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31141377998 and 31141378016.

It is not an unprimeable number, because it can be changed into a prime (31141378351) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2224384140 + ... + 2224384153.

It is an arithmetic number, because the mean of its divisors is an integer number (8897536588).

Almost surely, 2^31141378051 is an apocalyptic number.

31141378051 is a deficient number, since it is larger than the sum of its proper divisors (4448768301).

31141378051 is an equidigital number, since it uses as much as digits as its factorization.

31141378051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4448768300.

The product of its (nonzero) digits is 10080, while the sum is 34.

The spelling of 31141378051 in words is "thirty-one billion, one hundred forty-one million, three hundred seventy-eight thousand, fifty-one".