1020042323 has 2 divisors, whose sum is σ = 1020042324. Its totient is φ = 1020042322.

The previous prime is 1020042311. The next prime is 1020042337. The reversal of 1020042323 is 3232400201.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1020042323 is a prime.

It is a super-2 number, since 2×1020042323² = 2080972681422472658, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1020042223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510021161 + 510021162.

It is an arithmetic number, because the mean of its divisors is an integer number (510021162).

Almost surely, 2^1020042323 is an apocalyptic number.

1020042323 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020042323 is an equidigital number, since it uses as much as digits as its factorization.

1020042323 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 1020042323 is about 31938.1014307363. The cubic root of 1020042323 is about 1006.6366320123.

Adding to 1020042323 its reverse (3232400201), we get a palindrome (4252442524).

The spelling of 1020042323 in words is "one billion, twenty million, forty-two thousand, three hundred twenty-three".