1320101523 has 16 divisors (see below), whose sum is σ = 2106145440. Its totient is φ = 812369952.

The previous prime is 1320101521. The next prime is 1320101539. The reversal of 1320101523 is 3251010231.

1320101523 is a `hidden beast` number, since 132 + 0 + 10 + 1 + 523 = 666.

It is not a de Polignac number, because 1320101523 - 2¹ = 1320101521 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1320101496 and 1320101505.

It is not an unprimeable number, because it can be changed into a prime (1320101521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1880136 + ... + 1880837.

It is an arithmetic number, because the mean of its divisors is an integer number (131634090).

Almost surely, 2^1320101523 is an apocalyptic number.

1320101523 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1320101523 is a deficient number, since it is larger than the sum of its proper divisors (786043917).

1320101523 is a wasteful number, since it uses less digits than its factorization.

1320101523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3760995 (or 3760989 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 1320101523 is about 36333.2013866106. The cubic root of 1320101523 is about 1096.9894326956.

Adding to 1320101523 its reverse (3251010231), we get a palindrome (4571111754).

The spelling of 1320101523 in words is "one billion, three hundred twenty million, one hundred one thousand, five hundred twenty-three".