2131000346 has 4 divisors (see below), whose sum is σ = 3196500522. Its totient is φ = 1065500172.

The previous prime is 2131000331. The next prime is 2131000373. The reversal of 2131000346 is 6430001312.

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., 1065696025 + 1065304321 = 32645^2 + 32639^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 532750085 + ... + 532750088.

Almost surely, 2^2131000346 is an apocalyptic number.

2131000346 is a deficient number, since it is larger than the sum of its proper divisors (1065500176).

2131000346 is a wasteful number, since it uses less digits than its factorization.

2131000346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1065500175.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 2131000346 is about 46162.7592979449. The cubic root of 2131000346 is about 1286.8497427873.

Adding to 2131000346 its reverse (6430001312), we get a palindrome (8561001658).

The spelling of 2131000346 in words is "two billion, one hundred thirty-one million, three hundred forty-six", and thus it is an aban number.