243130003402 has 64 divisors (see below), whose sum is σ = 454232427264. Its totient is φ = 95889853440.

The previous prime is 243130003381. The next prime is 243130003433. The reversal of 243130003402 is 204300031342.

It is a happy number.

It is a super-2 number, since 2×243130003402² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3843643 + ... + 3906385.

It is an arithmetic number, because the mean of its divisors is an integer number (7097381676).

Almost surely, 2^243130003402 is an apocalyptic number.

243130003402 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

243130003402 is a deficient number, since it is larger than the sum of its proper divisors (211102423862).

243130003402 is a wasteful number, since it uses less digits than its factorization.

243130003402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63583.

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 243130003402 its reverse (204300031342), we get a palindrome (447430034744).

The spelling of 243130003402 in words is "two hundred forty-three billion, one hundred thirty million, three thousand, four hundred two".