1243232143401 has 8 divisors (see below), whose sum is σ = 1755151261344. Its totient is φ = 780067227200.

The previous prime is 1243232143379. The next prime is 1243232143423. The reversal of 1243232143401 is 1043412323421.

It is an interprime number because it is at equal distance from previous prime (1243232143379) and next prime (1243232143423).

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

It is a cyclic number.

It is not a de Polignac number, because 1243232143401 - 2¹¹ = 1243232141353 is a prime.

It is a super-3 number, since 3×1243232143401³ (a number of 37 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1243232143201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12188550375 + ... + 12188550476.

It is an arithmetic number, because the mean of its divisors is an integer number (219393907668).

Almost surely, 2^{1243232143401} is an apocalyptic number.

It is an amenable number.

1243232143401 is a deficient number, since it is larger than the sum of its proper divisors (511919117943).

1243232143401 is a wasteful number, since it uses less digits than its factorization.

1243232143401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24377100871.

The product of its (nonzero) digits is 13824, while the sum is 30.

Adding to 1243232143401 its reverse (1043412323421), we get a palindrome (2286644466822).

The spelling of 1243232143401 in words is "one trillion, two hundred forty-three billion, two hundred thirty-two million, one hundred forty-three thousand, four hundred one".