2131243142330 has 32 divisors (see below), whose sum is σ = 3857915355840. Its totient is φ = 847680599680.

The previous prime is 2131243142323. The next prime is 2131243142341. The reversal of 2131243142330 is 332413421312.

It is a junction number, because it is equal to n+sod(n) for n = 2131243142293 and 2131243142302.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39515942 + ... + 39569838.

It is an arithmetic number, because the mean of its divisors is an integer number (120559854870).

Almost surely, 2^{2131243142330} is an apocalyptic number.

2131243142330 is a deficient number, since it is larger than the sum of its proper divisors (1726672213510).

2131243142330 is a wasteful number, since it uses less digits than its factorization.

2131243142330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76174.

The product of its (nonzero) digits is 10368, while the sum is 29.

Adding to 2131243142330 its reverse (332413421312), we get a palindrome (2463656563642).

The spelling of 2131243142330 in words is "two trillion, one hundred thirty-one billion, two hundred forty-three million, one hundred forty-two thousand, three hundred thirty".