20332213031 has 4 divisors (see below), whose sum is σ = 21896229432. Its totient is φ = 18768196632.

The previous prime is 20332212983. The next prime is 20332213037. The reversal of 20332213031 is 13031223302.

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

It is a cyclic number.

It is not a de Polignac number, because 20332213031 - 2³⁰ = 19258471207 is a prime.

It is a super-2 number, since 2×20332213031² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20332212994 and 20332213012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20332213037) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 782008181 + ... + 782008206.

It is an arithmetic number, because the mean of its divisors is an integer number (5474057358).

Almost surely, 2^20332213031 is an apocalyptic number.

20332213031 is a deficient number, since it is larger than the sum of its proper divisors (1564016401).

20332213031 is a wasteful number, since it uses less digits than its factorization.

20332213031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1564016400.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 20332213031 its reverse (13031223302), we get a palindrome (33363436333).

The spelling of 20332213031 in words is "twenty billion, three hundred thirty-two million, two hundred thirteen thousand, thirty-one".