20012401933 has 2 divisors, whose sum is σ = 20012401934. Its totient is φ = 20012401932.

The previous prime is 20012401901. The next prime is 20012401949. The reversal of 20012401933 is 33910421002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19693350889 + 319051044 = 140333^2 + 17862^2 .

It is a cyclic number.

It is not a de Polignac number, because 20012401933 - 2⁵ = 20012401901 is a prime.

It is a super-2 number, since 2×20012401933² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20012401898 and 20012401907.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20012401993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10006200966 + 10006200967.

It is an arithmetic number, because the mean of its divisors is an integer number (10006200967).

Almost surely, 2^20012401933 is an apocalyptic number.

It is an amenable number.

20012401933 is a deficient number, since it is larger than the sum of its proper divisors (1).

20012401933 is an equidigital number, since it uses as much as digits as its factorization.

20012401933 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 20012401933 its reverse (33910421002), we get a palindrome (53922822935).

The spelling of 20012401933 in words is "twenty billion, twelve million, four hundred one thousand, nine hundred thirty-three".