31544053141 has 4 divisors (see below), whose sum is σ = 31976163532. Its totient is φ = 31111942752.

The previous prime is 31544053049. The next prime is 31544053187. The reversal of 31544053141 is 14135044513.

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

It can be written as a sum of positive squares in 2 ways, for example, as 22516202916 + 9027850225 = 150054^2 + 95015^2 .

It is a cyclic number.

It is not a de Polignac number, because 31544053141 - 2¹¹ = 31544051093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31544053241) 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, 216055086 + ... + 216055231.

It is an arithmetic number, because the mean of its divisors is an integer number (7994040883).

Almost surely, 2^31544053141 is an apocalyptic number.

It is an amenable number.

31544053141 is a deficient number, since it is larger than the sum of its proper divisors (432110391).

31544053141 is an equidigital number, since it uses as much as digits as its factorization.

31544053141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432110390.

The product of its (nonzero) digits is 14400, while the sum is 31.

Adding to 31544053141 its reverse (14135044513), we get a palindrome (45679097654).

The spelling of 31544053141 in words is "thirty-one billion, five hundred forty-four million, fifty-three thousand, one hundred forty-one".