31530031212041 has 4 divisors (see below), whose sum is σ = 31723466986512. Its totient is φ = 31336595437572.

The previous prime is 31530031212037. The next prime is 31530031212067. The reversal of 31530031212041 is 14021213003513.

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 31530031212041 - 2² = 31530031212037 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31530031212041.

It is not an unprimeable number, because it can be changed into a prime (31530081212041) 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, 96717886991 + ... + 96717887316.

It is an arithmetic number, because the mean of its divisors is an integer number (7930866746628).

Almost surely, 2^{31530031212041} is an apocalyptic number.

It is an amenable number.

31530031212041 is a deficient number, since it is larger than the sum of its proper divisors (193435774471).

31530031212041 is a wasteful number, since it uses less digits than its factorization.

31530031212041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193435774470.

The product of its (nonzero) digits is 2160, while the sum is 26.

Adding to 31530031212041 its reverse (14021213003513), we get a palindrome (45551244215554).

The spelling of 31530031212041 in words is "thirty-one trillion, five hundred thirty billion, thirty-one million, two hundred twelve thousand, forty-one".