131121048 has 16 divisors (see below), whose sum is σ = 327802680. Its totient is φ = 43707008.

The previous prime is 131121031. The next prime is 131121113. The reversal of 131121048 is 840121131.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2731665 + ... + 2731712.

Almost surely, 2^131121048 is an apocalyptic number.

It is an amenable number.

131121048 is an abundant number, since it is smaller than the sum of its proper divisors (196681632).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131121048 is a wasteful number, since it uses less digits than its factorization.

131121048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5463386 (or 5463382 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 21.

The square root of 131121048 is about 11450.8099276863. The cubic root of 131121048 is about 508.0316904197.

Adding to 131121048 its reverse (840121131), we get a palindrome (971242179).

The spelling of 131121048 in words is "one hundred thirty-one million, one hundred twenty-one thousand, forty-eight".