1243021034213 has 8 divisors (see below), whose sum is σ = 1423145912832. Its totient is φ = 1063533766896.

The previous prime is 1243021034179. The next prime is 1243021034231. The reversal of 1243021034213 is 3124301203421.

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 1243021034213 - 2⁸ = 1243021033957 is a prime.

It is a super-2 number, since 2×1243021034213² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1243021034113) 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, 159398645 + ... + 159406442.

It is an arithmetic number, because the mean of its divisors is an integer number (177893239104).

Almost surely, 2^{1243021034213} is an apocalyptic number.

It is an amenable number.

1243021034213 is a deficient number, since it is larger than the sum of its proper divisors (180124878619).

1243021034213 is an equidigital number, since it uses as much as digits as its factorization.

1243021034213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318805651.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 1243021034213 its reverse (3124301203421), we get a palindrome (4367322237634).

The spelling of 1243021034213 in words is "one trillion, two hundred forty-three billion, twenty-one million, thirty-four thousand, two hundred thirteen".