1143310402542 has 144 divisors (see below), whose sum is σ = 2925119146320. Its totient is φ = 296823985920.

The previous prime is 1143310402523. The next prime is 1143310402561. The reversal of 1143310402542 is 2452040133411.

It is an interprime number because it is at equal distance from previous prime (1143310402523) and next prime (1143310402561).

It is a congruent number.

It is an unprimeable number.

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 71 ways as a sum of consecutive naturals, for example, 90956434 + ... + 90969002.

It is an arithmetic number, because the mean of its divisors is an integer number (20313327405).

Almost surely, 2^{1143310402542} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1143310402542, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1462559573160).

1143310402542 is an abundant number, since it is smaller than the sum of its proper divisors (1781808743778).

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

1143310402542 is a wasteful number, since it uses less digits than its factorization.

1143310402542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15167 (or 15149 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

Adding to 1143310402542 its reverse (2452040133411), we get a palindrome (3595350535953).

The spelling of 1143310402542 in words is "one trillion, one hundred forty-three billion, three hundred ten million, four hundred two thousand, five hundred forty-two".