20133012451 has 2 divisors, whose sum is σ = 20133012452. Its totient is φ = 20133012450.

The previous prime is 20133012421. The next prime is 20133012469. The reversal of 20133012451 is 15421033102.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20133012451 is a prime.

It is not a weakly prime, because it can be changed into another prime (20133012421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10066506225 + 10066506226.

It is an arithmetic number, because the mean of its divisors is an integer number (10066506226).

Almost surely, 2^20133012451 is an apocalyptic number.

20133012451 is a deficient number, since it is larger than the sum of its proper divisors (1).

20133012451 is an equidigital number, since it uses as much as digits as its factorization.

20133012451 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 22.

Adding to 20133012451 its reverse (15421033102), we get a palindrome (35554045553).

The spelling of 20133012451 in words is "twenty billion, one hundred thirty-three million, twelve thousand, four hundred fifty-one".