31145200031534 has 8 divisors (see below), whose sum is σ = 46858941438168. Its totient is φ = 15525552885480.

The previous prime is 31145200031447. The next prime is 31145200031537. The reversal of 31145200031534 is 43513000254113.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 31145200031534.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31145200031537) 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, 23523564317 + ... + 23523565640.

It is an arithmetic number, because the mean of its divisors is an integer number (5857367679771).

Almost surely, 2^{31145200031534} is an apocalyptic number.

31145200031534 is a deficient number, since it is larger than the sum of its proper divisors (15713741406634).

31145200031534 is a wasteful number, since it uses less digits than its factorization.

31145200031534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47047130290.

The product of its (nonzero) digits is 21600, while the sum is 32.

Adding to 31145200031534 its reverse (43513000254113), we get a palindrome (74658200285647).

The spelling of 31145200031534 in words is "thirty-one trillion, one hundred forty-five billion, two hundred million, thirty-one thousand, five hundred thirty-four".