31144120400041 has 4 divisors (see below), whose sum is σ = 33975404072784. Its totient is φ = 28312836727300.

The previous prime is 31144120400033. The next prime is 31144120400143. The reversal of 31144120400041 is 14000402144113.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 31144120400041 - 2³ = 31144120400033 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31144120399979 and 31144120400015.

It is not an unprimeable number, because it can be changed into a prime (31144120800041) 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, 1415641836355 + ... + 1415641836376.

It is an arithmetic number, because the mean of its divisors is an integer number (8493851018196).

Almost surely, 2^{31144120400041} is an apocalyptic number.

It is an amenable number.

31144120400041 is a deficient number, since it is larger than the sum of its proper divisors (2831283672743).

31144120400041 is a wasteful number, since it uses less digits than its factorization.

31144120400041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2831283672742.

The product of its (nonzero) digits is 1536, while the sum is 25.

Adding to 31144120400041 its reverse (14000402144113), we get a palindrome (45144522544154).

The spelling of 31144120400041 in words is "thirty-one trillion, one hundred forty-four billion, one hundred twenty million, four hundred thousand, forty-one".