20402003233 has 8 divisors (see below), whose sum is σ = 20428898336. Its totient is φ = 20375128800.

The previous prime is 20402003231. The next prime is 20402003243. The reversal of 20402003233 is 33230020402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20402003233 - 2¹ = 20402003231 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20402003233.

It is not an unprimeable number, because it can be changed into a prime (20402003231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2978893 + ... + 2985733.

It is an arithmetic number, because the mean of its divisors is an integer number (2553612292).

Almost surely, 2^20402003233 is an apocalyptic number.

It is an amenable number.

20402003233 is a deficient number, since it is larger than the sum of its proper divisors (26895103).

20402003233 is a wasteful number, since it uses less digits than its factorization.

20402003233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10335.

The product of its (nonzero) digits is 864, while the sum is 19.

Adding to 20402003233 its reverse (33230020402), we get a palindrome (53632023635).

The spelling of 20402003233 in words is "twenty billion, four hundred two million, three thousand, two hundred thirty-three".