1145433431142 has 288 divisors, whose sum is σ = 3539726072064. Its totient is φ = 258473548800.

The previous prime is 1145433431141. The next prime is 1145433431171. The reversal of 1145433431142 is 2411343345411.

1145433431142 is a `hidden beast` number, since 1 + 1 + 4 + 5 + 4 + 334 + 311 + 4 + 2 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 1145433431097 and 1145433431106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1145433431141) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 5097217 + ... + 5317187.

It is an arithmetic number, because the mean of its divisors is an integer number (12290715528).

Almost surely, 2^{1145433431142} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1145433431142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1769863036032).

1145433431142 is an abundant number, since it is smaller than the sum of its proper divisors (2394292640922).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1145433431142 is a wasteful number, since it uses less digits than its factorization.

1145433431142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220044 (or 220024 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

Adding to 1145433431142 its reverse (2411343345411), we get a palindrome (3556776776553).

The spelling of 1145433431142 in words is "one trillion, one hundred forty-five billion, four hundred thirty-three million, four hundred thirty-one thousand, one hundred forty-two".