1023002100551 has 2 divisors, whose sum is σ = 1023002100552. Its totient is φ = 1023002100550.

The previous prime is 1023002100521. The next prime is 1023002100559. The reversal of 1023002100551 is 1550012003201.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1023002100551 - 2⁶ = 1023002100487 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1023002100559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511501050275 + 511501050276.

It is an arithmetic number, because the mean of its divisors is an integer number (511501050276).

Almost surely, 2^{1023002100551} is an apocalyptic number.

1023002100551 is a deficient number, since it is larger than the sum of its proper divisors (1).

1023002100551 is an equidigital number, since it uses as much as digits as its factorization.

1023002100551 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 300, while the sum is 20.

Adding to 1023002100551 its reverse (1550012003201), we get a palindrome (2573014103752).

The spelling of 1023002100551 in words is "one trillion, twenty-three billion, two million, one hundred thousand, five hundred fifty-one".