1131000232345 has 16 divisors (see below), whose sum is σ = 1360122829632. Its totient is φ = 902852251840.

The previous prime is 1131000232337. The next prime is 1131000232391. The reversal of 1131000232345 is 5432320001311.

It is a happy number.

It is not a de Polignac number, because 1131000232345 - 2³ = 1131000232337 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26328054 + ... + 26370976.

It is an arithmetic number, because the mean of its divisors is an integer number (85007676852).

Almost surely, 2^{1131000232345} is an apocalyptic number.

It is an amenable number.

1131000232345 is a deficient number, since it is larger than the sum of its proper divisors (229122597287).

1131000232345 is a wasteful number, since it uses less digits than its factorization.

1131000232345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54152.

The product of its (nonzero) digits is 2160, while the sum is 25.

Adding to 1131000232345 its reverse (5432320001311), we get a palindrome (6563320233656).

The spelling of 1131000232345 in words is "one trillion, one hundred thirty-one billion, two hundred thirty-two thousand, three hundred forty-five".