1520134422423 has 16 divisors (see below), whose sum is σ = 2057198734080. Its totient is φ = 998248021056.

The previous prime is 1520134422371. The next prime is 1520134422439. The reversal of 1520134422423 is 3242244310251.

It is a happy number.

It is not a de Polignac number, because 1520134422423 - 2⁸ = 1520134422167 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1520134422493) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4151686 + ... + 4502972.

It is an arithmetic number, because the mean of its divisors is an integer number (128574920880).

Almost surely, 2^{1520134422423} is an apocalyptic number.

1520134422423 is a deficient number, since it is larger than the sum of its proper divisors (537064311657).

1520134422423 is a wasteful number, since it uses less digits than its factorization.

1520134422423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372886.

The product of its (nonzero) digits is 46080, while the sum is 33.

Adding to 1520134422423 its reverse (3242244310251), we get a palindrome (4762378732674).

The spelling of 1520134422423 in words is "one trillion, five hundred twenty billion, one hundred thirty-four million, four hundred twenty-two thousand, four hundred twenty-three".