20934100233 has 24 divisors (see below), whose sum is σ = 31764657600. Its totient is φ = 13259669280.

The previous prime is 20934100223. The next prime is 20934100259. The reversal of 20934100233 is 33200143902.

It is a happy number.

It is not a de Polignac number, because 20934100233 - 2¹³ = 20934092041 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20934100197 and 20934100206.

It is not an unprimeable number, because it can be changed into a prime (20934100223) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 308523 + ... + 370208.

It is an arithmetic number, because the mean of its divisors is an integer number (1323527400).

Almost surely, 2^20934100233 is an apocalyptic number.

20934100233 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

20934100233 is a deficient number, since it is larger than the sum of its proper divisors (10830557367).

20934100233 is a wasteful number, since it uses less digits than its factorization.

20934100233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 678909 (or 678906 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

The spelling of 20934100233 in words is "twenty billion, nine hundred thirty-four million, one hundred thousand, two hundred thirty-three".