131124428 has 24 divisors (see below), whose sum is σ = 237837600. Its totient is φ = 63179648.

The previous prime is 131124421. The next prime is 131124463. The reversal of 131124428 is 824421131.

It is a junction number, because it is equal to n+sod(n) for n = 131124397 and 131124406.

It is not an unprimeable number, because it can be changed into a prime (131124421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98753 + ... + 100071.

It is an arithmetic number, because the mean of its divisors is an integer number (9909900).

Almost surely, 2^131124428 is an apocalyptic number.

It is an amenable number.

131124428 is a deficient number, since it is larger than the sum of its proper divisors (106713172).

131124428 is a wasteful number, since it uses less digits than its factorization.

131124428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2209 (or 2207 counting only the distinct ones).

The product of its digits is 1536, while the sum is 26.

The square root of 131124428 is about 11450.9575145487. The cubic root of 131124428 is about 508.0360556796.

Adding to 131124428 its reverse (824421131), we get a palindrome (955545559).

The spelling of 131124428 in words is "one hundred thirty-one million, one hundred twenty-four thousand, four hundred twenty-eight".