1020140034523 has 2 divisors, whose sum is σ = 1020140034524. Its totient is φ = 1020140034522.

The previous prime is 1020140034517. The next prime is 1020140034527. The reversal of 1020140034523 is 3254300410201.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1020140034523 is a prime.

It is not a weakly prime, because it can be changed into another prime (1020140034527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510070017261 + 510070017262.

It is an arithmetic number, because the mean of its divisors is an integer number (510070017262).

Almost surely, 2^{1020140034523} is an apocalyptic number.

1020140034523 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020140034523 is an equidigital number, since it uses as much as digits as its factorization.

1020140034523 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 1020140034523 its reverse (3254300410201), we get a palindrome (4274440444724).

The spelling of 1020140034523 in words is "one trillion, twenty billion, one hundred forty million, thirty-four thousand, five hundred twenty-three".