2131242141400 has 96 divisors (see below), whose sum is σ = 5247752336640. Its totient is φ = 803261036160.

The previous prime is 2131242141359. The next prime is 2131242141401. The reversal of 2131242141400 is 41412421312.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2131242141401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3149364 + ... + 3765763.

It is an arithmetic number, because the mean of its divisors is an integer number (54664086840).

Almost surely, 2^{2131242141400} is an apocalyptic number.

2131242141400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2131242141400 is an abundant number, since it is smaller than the sum of its proper divisors (3116510195240).

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

2131242141400 is a wasteful number, since it uses less digits than its factorization.

2131242141400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6915233 (or 6915224 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

Adding to 2131242141400 its reverse (41412421312), we get a palindrome (2172654562712).

The spelling of 2131242141400 in words is "two trillion, one hundred thirty-one billion, two hundred forty-two million, one hundred forty-one thousand, four hundred".