21933103037 has 2 divisors, whose sum is σ = 21933103038. Its totient is φ = 21933103036.

The previous prime is 21933103033. The next prime is 21933103057. The reversal of 21933103037 is 73030133912.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13692276196 + 8240826841 = 117014^2 + 90779^2 .

It is a cyclic number.

It is not a de Polignac number, because 21933103037 - 2² = 21933103033 is a prime.

It is a super-2 number, since 2×21933103037² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21933102994 and 21933103012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21933103033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10966551518 + 10966551519.

It is an arithmetic number, because the mean of its divisors is an integer number (10966551519).

Almost surely, 2^21933103037 is an apocalyptic number.

It is an amenable number.

21933103037 is a deficient number, since it is larger than the sum of its proper divisors (1).

21933103037 is an equidigital number, since it uses as much as digits as its factorization.

21933103037 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10206, while the sum is 32.

Adding to 21933103037 its reverse (73030133912), we get a palindrome (94963236949).

The spelling of 21933103037 in words is "twenty-one billion, nine hundred thirty-three million, one hundred three thousand, thirty-seven".