1012232021903 has 2 divisors, whose sum is σ = 1012232021904. Its totient is φ = 1012232021902.

The previous prime is 1012232021851. The next prime is 1012232021929. The reversal of 1012232021903 is 3091202322101.

It is an a-pointer prime, because the next prime (1012232021929) can be obtained adding 1012232021903 to its sum of digits (26).

It is a strong prime.

It is an emirp because it is prime and its reverse (3091202322101) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1012232021903 is a prime.

It is a super-2 number, since 2×1012232021903² (a number of 25 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1012232021993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506116010951 + 506116010952.

It is an arithmetic number, because the mean of its divisors is an integer number (506116010952).

Almost surely, 2^{1012232021903} is an apocalyptic number.

1012232021903 is a deficient number, since it is larger than the sum of its proper divisors (1).

1012232021903 is an equidigital number, since it uses as much as digits as its factorization.

1012232021903 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 26.

The spelling of 1012232021903 in words is "one trillion, twelve billion, two hundred thirty-two million, twenty-one thousand, nine hundred three".