20400214333 has 2 divisors, whose sum is σ = 20400214334. Its totient is φ = 20400214332.

The previous prime is 20400214277. The next prime is 20400214349. The reversal of 20400214333 is 33341200402.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13242715929 + 7157498404 = 115077^2 + 84602^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20400214333 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20400211333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10200107166 + 10200107167.

It is an arithmetic number, because the mean of its divisors is an integer number (10200107167).

Almost surely, 2^20400214333 is an apocalyptic number.

It is an amenable number.

20400214333 is a deficient number, since it is larger than the sum of its proper divisors (1).

20400214333 is an equidigital number, since it uses as much as digits as its factorization.

20400214333 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 20400214333 its reverse (33341200402), we get a palindrome (53741414735).

The spelling of 20400214333 in words is "twenty billion, four hundred million, two hundred fourteen thousand, three hundred thirty-three".