1001000031223 has 2 divisors, whose sum is σ = 1001000031224. Its totient is φ = 1001000031222.

The previous prime is 1001000031181. The next prime is 1001000031233. The reversal of 1001000031223 is 3221300001001.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1001000031223 - 2⁹ = 1001000030711 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1001000031233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500500015611 + 500500015612.

It is an arithmetic number, because the mean of its divisors is an integer number (500500015612).

Almost surely, 2^{1001000031223} is an apocalyptic number.

1001000031223 is a deficient number, since it is larger than the sum of its proper divisors (1).

1001000031223 is an equidigital number, since it uses as much as digits as its factorization.

1001000031223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 1001000031223 its reverse (3221300001001), we get a palindrome (4222300032224).

The spelling of 1001000031223 in words is "one trillion, one billion, thirty-one thousand, two hundred twenty-three".