2145430330042 has 8 divisors (see below), whose sum is σ = 3218153945076. Its totient is φ = 1072712348352.

The previous prime is 2145430330013. The next prime is 2145430330049. The reversal of 2145430330042 is 2400330345412.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2098497007161 + 46933322881 = 1448619^2 + 216641^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 2145430329986 and 2145430330013.

It is not an unprimeable number, because it can be changed into a prime (2145430330049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 273253 + ... + 2089384.

Almost surely, 2^{2145430330042} is an apocalyptic number.

2145430330042 is a deficient number, since it is larger than the sum of its proper divisors (1072723615034).

2145430330042 is a wasteful number, since it uses less digits than its factorization.

2145430330042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2816672.

The product of its (nonzero) digits is 34560, while the sum is 31.

Adding to 2145430330042 its reverse (2400330345412), we get a palindrome (4545760675454).

The spelling of 2145430330042 in words is "two trillion, one hundred forty-five billion, four hundred thirty million, three hundred thirty thousand, forty-two".