3131151230242 has 16 divisors (see below), whose sum is σ = 5368835122560. Its totient is φ = 1341635131008.

The previous prime is 3131151230231. The next prime is 3131151230267. The reversal of 3131151230242 is 2420321511313.

It is a self number, because there is not a number n which added to its sum of digits gives 3131151230242.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23834223 + ... + 23965234.

It is an arithmetic number, because the mean of its divisors is an integer number (335552195160).

Almost surely, 2^{3131151230242} is an apocalyptic number.

3131151230242 is a deficient number, since it is larger than the sum of its proper divisors (2237683892318).

3131151230242 is a wasteful number, since it uses less digits than its factorization.

3131151230242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47804145.

The product of its (nonzero) digits is 4320, while the sum is 28.

Adding to 3131151230242 its reverse (2420321511313), we get a palindrome (5551472741555).

The spelling of 3131151230242 in words is "three trillion, one hundred thirty-one billion, one hundred fifty-one million, two hundred thirty thousand, two hundred forty-two".