1023300021251 has 2 divisors, whose sum is σ = 1023300021252. Its totient is φ = 1023300021250.

The previous prime is 1023300021199. The next prime is 1023300021253. The reversal of 1023300021251 is 1521200033201.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1023300021251 is a prime.

Together with 1023300021253, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1023300021253) 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, 511650010625 + 511650010626.

It is an arithmetic number, because the mean of its divisors is an integer number (511650010626).

Almost surely, 2^{1023300021251} is an apocalyptic number.

1023300021251 is a deficient number, since it is larger than the sum of its proper divisors (1).

1023300021251 is an equidigital number, since it uses as much as digits as its factorization.

1023300021251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 360, while the sum is 20.

Adding to 1023300021251 its reverse (1521200033201), we get a palindrome (2544500054452).

The spelling of 1023300021251 in words is "one trillion, twenty-three billion, three hundred million, twenty-one thousand, two hundred fifty-one".