1023233521253 has 2 divisors, whose sum is σ = 1023233521254. Its totient is φ = 1023233521252.

The previous prime is 1023233521249. The next prime is 1023233521313. The reversal of 1023233521253 is 3521253323201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 846902394529 + 176331126724 = 920273^2 + 419918^2 .

It is a cyclic number.

It is not a de Polignac number, because 1023233521253 - 2² = 1023233521249 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1023133521253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511616760626 + 511616760627.

It is an arithmetic number, because the mean of its divisors is an integer number (511616760627).

Almost surely, 2^{1023233521253} is an apocalyptic number.

It is an amenable number.

1023233521253 is a deficient number, since it is larger than the sum of its proper divisors (1).

1023233521253 is an equidigital number, since it uses as much as digits as its factorization.

1023233521253 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32400, while the sum is 32.

Adding to 1023233521253 its reverse (3521253323201), we get a palindrome (4544486844454).

The spelling of 1023233521253 in words is "one trillion, twenty-three billion, two hundred thirty-three million, five hundred twenty-one thousand, two hundred fifty-three".