1020312523 has 2 divisors, whose sum is σ = 1020312524. Its totient is φ = 1020312522.

The previous prime is 1020312493. The next prime is 1020312533. The reversal of 1020312523 is 3252130201.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1020312523 - 2²⁹ = 483441611 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1020312523.

It is not a weakly prime, because it can be changed into another prime (1020312533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510156261 + 510156262.

It is an arithmetic number, because the mean of its divisors is an integer number (510156262).

Almost surely, 2^1020312523 is an apocalyptic number.

1020312523 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020312523 is an equidigital number, since it uses as much as digits as its factorization.

1020312523 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 1020312523 is about 31942.3312079754. The cubic root of 1020312523 is about 1006.7255071499.

Adding to 1020312523 its reverse (3252130201), we get a palindrome (4272442724).

The spelling of 1020312523 in words is "one billion, twenty million, three hundred twelve thousand, five hundred twenty-three".