20133333131 has 2 divisors, whose sum is σ = 20133333132. Its totient is φ = 20133333130.

The previous prime is 20133333119. The next prime is 20133333149. The reversal of 20133333131 is 13133333102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20133333131 - 2³⁰ = 19059591307 is a prime.

It is a super-2 number, since 2×20133333131² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20133333097 and 20133333106.

It is not a weakly prime, because it can be changed into another prime (20133333431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10066666565 + 10066666566.

It is an arithmetic number, because the mean of its divisors is an integer number (10066666566).

Almost surely, 2^20133333131 is an apocalyptic number.

20133333131 is a deficient number, since it is larger than the sum of its proper divisors (1).

20133333131 is an equidigital number, since it uses as much as digits as its factorization.

20133333131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1458, while the sum is 23.

Adding to 20133333131 its reverse (13133333102), we get a palindrome (33266666233).

The spelling of 20133333131 in words is "twenty billion, one hundred thirty-three million, three hundred thirty-three thousand, one hundred thirty-one".