1012320252345 has 32 divisors (see below), whose sum is σ = 1690428091392. Its totient is φ = 516340389312.

The previous prime is 1012320252277. The next prime is 1012320252347. The reversal of 1012320252345 is 5432520232101.

It is not a de Polignac number, because 1012320252345 - 2¹⁶ = 1012320186809 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1012320252347) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1758534 + ... + 2262096.

It is an arithmetic number, because the mean of its divisors is an integer number (52825877856).

Almost surely, 2^{1012320252345} is an apocalyptic number.

1012320252345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1012320252345 is a deficient number, since it is larger than the sum of its proper divisors (678107839047).

1012320252345 is a wasteful number, since it uses less digits than its factorization.

1012320252345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 509421.

The product of its (nonzero) digits is 14400, while the sum is 30.

Adding to 1012320252345 its reverse (5432520232101), we get a palindrome (6444840484446).

The spelling of 1012320252345 in words is "one trillion, twelve billion, three hundred twenty million, two hundred fifty-two thousand, three hundred forty-five".