1131523023245 has 16 divisors (see below), whose sum is σ = 1364010312960. Its totient is φ = 901099416000.

The previous prime is 1131523023233. The next prime is 1131523023269. The reversal of 1131523023245 is 5423203251311.

It is not a de Polignac number, because 1131523023245 - 2⁶ = 1131523023181 is a prime.

It is a congruent number.

It is an unprimeable number.

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, 3102770 + ... + 3448220.

It is an arithmetic number, because the mean of its divisors is an integer number (85250644560).

Almost surely, 2^{1131523023245} is an apocalyptic number.

It is an amenable number.

1131523023245 is a deficient number, since it is larger than the sum of its proper divisors (232487289715).

1131523023245 is a wasteful number, since it uses less digits than its factorization.

1131523023245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348436.

The product of its (nonzero) digits is 21600, while the sum is 32.

Adding to 1131523023245 its reverse (5423203251311), we get a palindrome (6554726274556).

The spelling of 1131523023245 in words is "one trillion, one hundred thirty-one billion, five hundred twenty-three million, twenty-three thousand, two hundred forty-five".