2131442341440 has 56 divisors (see below), whose sum is σ = 6767329437120. Its totient is φ = 568384624128.

The previous prime is 2131442341439. The next prime is 2131442341451. The reversal of 2131442341440 is 441432441312.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1110125260 + ... + 1110127179.

It is an arithmetic number, because the mean of its divisors is an integer number (120845168520).

Almost surely, 2^{2131442341440} is an apocalyptic number.

2131442341440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2131442341440 is an abundant number, since it is smaller than the sum of its proper divisors (4635887095680).

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

2131442341440 is a wasteful number, since it uses less digits than its factorization.

2131442341440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2220252459 (or 2220252449 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 33.

Adding to 2131442341440 its reverse (441432441312), we get a palindrome (2572874782752).

The spelling of 2131442341440 in words is "two trillion, one hundred thirty-one billion, four hundred forty-two million, three hundred forty-one thousand, four hundred forty".