1321231333011 has 8 divisors (see below), whose sum is σ = 1818468931584. Its totient is φ = 852407311560.

The previous prime is 1321231333003. The next prime is 1321231333033. The reversal of 1321231333011 is 1103331321231.

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

It is not a de Polignac number, because 1321231333011 - 2³ = 1321231333003 is a prime.

It is a super-2 number, since 2×1321231333011² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1321231333091) 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, 7103394171 + ... + 7103394356.

It is an arithmetic number, because the mean of its divisors is an integer number (227308616448).

Almost surely, 2^{1321231333011} is an apocalyptic number.

1321231333011 is a deficient number, since it is larger than the sum of its proper divisors (497237598573).

1321231333011 is a wasteful number, since it uses less digits than its factorization.

1321231333011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14206788561.

The product of its (nonzero) digits is 972, while the sum is 24.

Adding to 1321231333011 its reverse (1103331321231), we get a palindrome (2424562654242).

The spelling of 1321231333011 in words is "one trillion, three hundred twenty-one billion, two hundred thirty-one million, three hundred thirty-three thousand, eleven".