31011242240353 has 4 divisors (see below), whose sum is σ = 31312322262208. Its totient is φ = 30710162218500.

The previous prime is 31011242240257. The next prime is 31011242240423. The reversal of 31011242240353 is 35304224211013.

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 a de Polignac number, because none of the positive numbers 2^k-31011242240353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31011246240353) 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, 150540010773 + ... + 150540010978.

It is an arithmetic number, because the mean of its divisors is an integer number (7828080565552).

Almost surely, 2^{31011242240353} is an apocalyptic number.

It is an amenable number.

31011242240353 is a deficient number, since it is larger than the sum of its proper divisors (301080021855).

31011242240353 is a wasteful number, since it uses less digits than its factorization.

31011242240353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301080021854.

The product of its (nonzero) digits is 17280, while the sum is 31.

Adding to 31011242240353 its reverse (35304224211013), we get a palindrome (66315466451366).

The spelling of 31011242240353 in words is "thirty-one trillion, eleven billion, two hundred forty-two million, two hundred forty thousand, three hundred fifty-three".