20312000033 has 16 divisors (see below), whose sum is σ = 22350820800. Its totient is φ = 18344249280.

The previous prime is 20311999979. The next prime is 20312000039. The reversal of 20312000033 is 33000021302.

It is a cyclic number.

It is not a de Polignac number, because 20312000033 - 2¹⁶ = 20311934497 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20311999981 and 20312000017.

It is not an unprimeable number, because it can be changed into a prime (20312000039) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99083 + ... + 224591.

It is an arithmetic number, because the mean of its divisors is an integer number (1396926300).

Almost surely, 2^20312000033 is an apocalyptic number.

It is an amenable number.

20312000033 is a deficient number, since it is larger than the sum of its proper divisors (2038820767).

20312000033 is a wasteful number, since it uses less digits than its factorization.

20312000033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125792.

The product of its (nonzero) digits is 108, while the sum is 14.

Adding to 20312000033 its reverse (33000021302), we get a palindrome (53312021335).

The spelling of 20312000033 in words is "twenty billion, three hundred twelve million, thirty-three", and thus it is an aban number.