2131440311502 has 24 divisors (see below), whose sum is σ = 4705255029384. Its totient is φ = 697074818544.

The previous prime is 2131440311489. The next prime is 2131440311519. The reversal of 2131440311502 is 2051130441312.

2131440311502 is a `hidden beast` number, since 2 + 1 + 3 + 144 + 0 + 3 + 11 + 502 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1117106128 + ... + 1117108035.

It is an arithmetic number, because the mean of its divisors is an integer number (196052292891).

Almost surely, 2^{2131440311502} is an apocalyptic number.

2131440311502 is an abundant number, since it is smaller than the sum of its proper divisors (2573814717882).

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

2131440311502 is a wasteful number, since it uses less digits than its factorization.

2131440311502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2234214224 (or 2234214221 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

Adding to 2131440311502 its reverse (2051130441312), we get a palindrome (4182570752814).

The spelling of 2131440311502 in words is "two trillion, one hundred thirty-one billion, four hundred forty million, three hundred eleven thousand, five hundred two".