2031720332 has 6 divisors (see below), whose sum is σ = 3555510588. Its totient is φ = 1015860164.

The previous prime is 2031720329. The next prime is 2031720349. The reversal of 2031720332 is 2330271302.

It is a junction number, because it is equal to n+sod(n) for n = 2031720298 and 2031720307.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 253965038 + ... + 253965045.

It is an arithmetic number, because the mean of its divisors is an integer number (592585098).

Almost surely, 2^2031720332 is an apocalyptic number.

It is an amenable number.

2031720332 is a deficient number, since it is larger than the sum of its proper divisors (1523790256).

2031720332 is a wasteful number, since it uses less digits than its factorization.

2031720332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 507930087 (or 507930085 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 23.

The square root of 2031720332 is about 45074.6085063420. The cubic root of 2031720332 is about 1266.5469951884.

Adding to 2031720332 its reverse (2330271302), we get a palindrome (4361991634).

The spelling of 2031720332 in words is "two billion, thirty-one million, seven hundred twenty thousand, three hundred thirty-two".