131115245444 has 12 divisors (see below), whose sum is σ = 231679366464. Its totient is φ = 64921140744.

The previous prime is 131115245441. The next prime is 131115245473. The reversal of 131115245444 is 444542511131.

It is a super-3 number, since 3×131115245444³ (a number of 34 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (131115245441) 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, 159120032 + ... + 159120855.

It is an arithmetic number, because the mean of its divisors is an integer number (19306613872).

Almost surely, 2^131115245444 is an apocalyptic number.

It is an amenable number.

131115245444 is a deficient number, since it is larger than the sum of its proper divisors (100564121020).

131115245444 is a wasteful number, since it uses less digits than its factorization.

131115245444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318240994 (or 318240992 counting only the distinct ones).

The product of its digits is 38400, while the sum is 35.

Adding to 131115245444 its reverse (444542511131), we get a palindrome (575657756575).

The spelling of 131115245444 in words is "one hundred thirty-one billion, one hundred fifteen million, two hundred forty-five thousand, four hundred forty-four".