31430344110131 has 4 divisors (see below), whose sum is σ = 31433903211264. Its totient is φ = 31426785009000.

The previous prime is 31430344110101. The next prime is 31430344110167. The reversal of 31430344110131 is 13101144303413.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 31430344110131 - 2²² = 31430339915827 is a prime.

It is a super-2 number, since 2×31430344110131² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31430344110094 and 31430344110103.

It is not an unprimeable number, because it can be changed into a prime (31430344110101) 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, 1779537320 + ... + 1779554981.

It is an arithmetic number, because the mean of its divisors is an integer number (7858475802816).

Almost surely, 2^{31430344110131} is an apocalyptic number.

31430344110131 is a deficient number, since it is larger than the sum of its proper divisors (3559101133).

31430344110131 is an equidigital number, since it uses as much as digits as its factorization.

31430344110131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3559101132.

The product of its (nonzero) digits is 5184, while the sum is 29.

Adding to 31430344110131 its reverse (13101144303413), we get a palindrome (44531488413544).

The spelling of 31430344110131 in words is "thirty-one trillion, four hundred thirty billion, three hundred forty-four million, one hundred ten thousand, one hundred thirty-one".