2131433232466 has 4 divisors (see below), whose sum is σ = 3197149848702. Its totient is φ = 1065716616232.

The previous prime is 2131433232437. The next prime is 2131433232491. The reversal of 2131433232466 is 6642323341312.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1211903748225 + 919529484241 = 1100865^2 + 958921^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 532858308115 + ... + 532858308118.

Almost surely, 2^{2131433232466} is an apocalyptic number.

2131433232466 is a deficient number, since it is larger than the sum of its proper divisors (1065716616236).

2131433232466 is a wasteful number, since it uses less digits than its factorization.

2131433232466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1065716616235.

The product of its digits is 373248, while the sum is 40.

Adding to 2131433232466 its reverse (6642323341312), we get a palindrome (8773756573778).

The spelling of 2131433232466 in words is "two trillion, one hundred thirty-one billion, four hundred thirty-three million, two hundred thirty-two thousand, four hundred sixty-six".