1142204535531 has 12 divisors (see below), whose sum is σ = 1649873049552. Its totient is φ = 761459511696.

The previous prime is 1142204535469. The next prime is 1142204535533. The reversal of 1142204535531 is 1355354022411.

1142204535531 is a `hidden beast` number, since 1 + 1 + 42 + 20 + 45 + 3 + 553 + 1 = 666.

It is not a de Polignac number, because 1142204535531 - 2⁶ = 1142204535467 is a prime.

It is a super-2 number, since 2×1142204535531² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1142204535533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 103071 + ... + 1514936.

It is an arithmetic number, because the mean of its divisors is an integer number (137489420796).

Almost surely, 2^{1142204535531} is an apocalyptic number.

1142204535531 is a deficient number, since it is larger than the sum of its proper divisors (507668514021).

1142204535531 is a wasteful number, since it uses less digits than its factorization.

1142204535531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1696450 (or 1696447 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

Adding to 1142204535531 its reverse (1355354022411), we get a palindrome (2497558557942).

The spelling of 1142204535531 in words is "one trillion, one hundred forty-two billion, two hundred four million, five hundred thirty-five thousand, five hundred thirty-one".