1031423235851 has 2 divisors, whose sum is σ = 1031423235852. Its totient is φ = 1031423235850.

The previous prime is 1031423235823. The next prime is 1031423235853. The reversal of 1031423235851 is 1585323241301.

1031423235851 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1031423235851 is a prime.

Together with 1031423235853, 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 (1031423235853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 515711617925 + 515711617926.

It is an arithmetic number, because the mean of its divisors is an integer number (515711617926).

Almost surely, 2^{1031423235851} is an apocalyptic number.

1031423235851 is a deficient number, since it is larger than the sum of its proper divisors (1).

1031423235851 is an equidigital number, since it uses as much as digits as its factorization.

1031423235851 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 86400, while the sum is 38.

The spelling of 1031423235851 in words is "one trillion, thirty-one billion, four hundred twenty-three million, two hundred thirty-five thousand, eight hundred fifty-one".