45242542330131 has 4 divisors (see below), whose sum is σ = 60323389773512. Its totient is φ = 30161694886752.

The previous prime is 45242542330127. The next prime is 45242542330169. The reversal of 45242542330131 is 13103324524254.

It is a happy number.

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

It is not a de Polignac number, because 45242542330131 - 2² = 45242542330127 is a prime.

It is a super-2 number, since 2×45242542330131² (a number of 28 digits) contains 22 as substring.

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 45242542330131.

It is not an unprimeable number, because it can be changed into a prime (45242542330031) 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, 7540423721686 + ... + 7540423721691.

It is an arithmetic number, because the mean of its divisors is an integer number (15080847443378).

Almost surely, 2^{45242542330131} is an apocalyptic number.

45242542330131 is a deficient number, since it is larger than the sum of its proper divisors (15080847443381).

45242542330131 is a wasteful number, since it uses less digits than its factorization.

45242542330131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15080847443380.

The product of its (nonzero) digits is 345600, while the sum is 39.

Adding to 45242542330131 its reverse (13103324524254), we get a palindrome (58345866854385).

The spelling of 45242542330131 in words is "forty-five trillion, two hundred forty-two billion, five hundred forty-two million, three hundred thirty thousand, one hundred thirty-one".