20133215262473 has 2 divisors, whose sum is σ = 20133215262474. Its totient is φ = 20133215262472.

The previous prime is 20133215262403. The next prime is 20133215262557. The reversal of 20133215262473 is 37426251233102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17557549769929 + 2575665492544 = 4190173^2 + 1604888^2 .

It is a cyclic number.

It is not a de Polignac number, because 20133215262473 - 2⁴² = 15735168751369 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20133215262473.

It is not a weakly prime, because it can be changed into another prime (20133215262403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10066607631236 + 10066607631237.

It is an arithmetic number, because the mean of its divisors is an integer number (10066607631237).

Almost surely, 2^{20133215262473} is an apocalyptic number.

It is an amenable number.

20133215262473 is a deficient number, since it is larger than the sum of its proper divisors (1).

20133215262473 is an equidigital number, since it uses as much as digits as its factorization.

20133215262473 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 362880, while the sum is 41.

Adding to 20133215262473 its reverse (37426251233102), we get a palindrome (57559466495575).

The spelling of 20133215262473 in words is "twenty trillion, one hundred thirty-three billion, two hundred fifteen million, two hundred sixty-two thousand, four hundred seventy-three".