1131320042534 has 32 divisors (see below), whose sum is σ = 1871127367200. Its totient is φ = 508719651840.

The previous prime is 1131320042519. The next prime is 1131320042539. The reversal of 1131320042534 is 4352400231311.

It is a junction number, because it is equal to n+sod(n) for n = 1131320042497 and 1131320042506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131320042539) 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, 4987172 + ... + 5209080.

It is an arithmetic number, because the mean of its divisors is an integer number (58472730225).

Almost surely, 2^{1131320042534} is an apocalyptic number.

1131320042534 is a deficient number, since it is larger than the sum of its proper divisors (739807324666).

1131320042534 is a wasteful number, since it uses less digits than its factorization.

1131320042534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224408.

The product of its (nonzero) digits is 8640, while the sum is 29.

Adding to 1131320042534 its reverse (4352400231311), we get a palindrome (5483720273845).

The spelling of 1131320042534 in words is "one trillion, one hundred thirty-one billion, three hundred twenty million, forty-two thousand, five hundred thirty-four".