2143451322 has 40 divisors (see below), whose sum is σ = 4814168436. Its totient is φ = 712810368.

The previous prime is 2143451311. The next prime is 2143451353. The reversal of 2143451322 is 2231543412.

2143451322 is a `hidden beast` number, since 2 + 143 + 4 + 513 + 2 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1685020401 + 458430921 = 41049^2 + 21411^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 54868 + ... + 85424.

Almost surely, 2^2143451322 is an apocalyptic number.

2143451322 is an abundant number, since it is smaller than the sum of its proper divisors (2670717114).

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

2143451322 is a wasteful number, since it uses less digits than its factorization.

2143451322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31004 (or 30995 counting only the distinct ones).

The product of its digits is 5760, while the sum is 27.

The square root of 2143451322 is about 46297.4224120523. The cubic root of 2143451322 is about 1289.3511393396.

Adding to 2143451322 its reverse (2231543412), we get a palindrome (4374994734).

The spelling of 2143451322 in words is "two billion, one hundred forty-three million, four hundred fifty-one thousand, three hundred twenty-two".