131124121040 has 40 divisors (see below), whose sum is σ = 332578454688. Its totient is φ = 47681498240.

The previous prime is 131124121003. The next prime is 131124121049. The reversal of 131124121040 is 40121421131.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131124121049) 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, 74501462 + ... + 74503221.

Almost surely, 2^131124121040 is an apocalyptic number.

131124121040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131124121040 is an abundant number, since it is smaller than the sum of its proper divisors (201454333648).

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

131124121040 is a wasteful number, since it uses less digits than its factorization.

131124121040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149004707 (or 149004701 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 131124121040 its reverse (40121421131), we get a palindrome (171245542171).

The spelling of 131124121040 in words is "one hundred thirty-one billion, one hundred twenty-four million, one hundred twenty-one thousand, forty".