1243304023011 has 8 divisors (see below), whose sum is σ = 1657749522624. Its totient is φ = 828863936040.

The previous prime is 1243304022991. The next prime is 1243304023103. The reversal of 1243304023011 is 1103204033421.

It is a happy number.

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

It is not a de Polignac number, because 1243304023011 - 2²⁶ = 1243236914147 is a prime.

It is a super-2 number, since 2×1243304023011² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1243305023011) 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, 782845 + ... + 1760526.

It is an arithmetic number, because the mean of its divisors is an integer number (207218690328).

Almost surely, 2^{1243304023011} is an apocalyptic number.

1243304023011 is a deficient number, since it is larger than the sum of its proper divisors (414445499613).

1243304023011 is a wasteful number, since it uses less digits than its factorization.

1243304023011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2706321.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 1243304023011 its reverse (1103204033421), we get a palindrome (2346508056432).

The spelling of 1243304023011 in words is "one trillion, two hundred forty-three billion, three hundred four million, twenty-three thousand, eleven".