20310221032 has 16 divisors (see below), whose sum is σ = 38083766400. Its totient is φ = 10154550000.

The previous prime is 20310221017. The next prime is 20310221053. The reversal of 20310221032 is 23012201302.

It is a junction number, because it is equal to n+sod(n) for n = 20310220997 and 20310221015.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111657 + ... + 230407.

It is an arithmetic number, because the mean of its divisors is an integer number (2380235400).

Almost surely, 2^20310221032 is an apocalyptic number.

It is an amenable number.

20310221032 is a deficient number, since it is larger than the sum of its proper divisors (17773545368).

20310221032 is a wasteful number, since it uses less digits than its factorization.

20310221032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140136 (or 140132 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 20310221032 its reverse (23012201302), we get a palindrome (43322422334).

The spelling of 20310221032 in words is "twenty billion, three hundred ten million, two hundred twenty-one thousand, thirty-two".