1232420021331 has 16 divisors (see below), whose sum is σ = 1731409852800. Its totient is φ = 777606645888.

The previous prime is 1232420021303. The next prime is 1232420021381. The reversal of 1232420021331 is 1331200242321.

It is not a de Polignac number, because 1232420021331 - 2¹⁴ = 1232420004947 is a prime.

It is a super-2 number, since 2×1232420021331² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1232420021381) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10551046 + ... + 10667211.

It is an arithmetic number, because the mean of its divisors is an integer number (108213115800).

Almost surely, 2^{1232420021331} is an apocalyptic number.

1232420021331 is a deficient number, since it is larger than the sum of its proper divisors (498989831469).

1232420021331 is a wasteful number, since it uses less digits than its factorization.

1232420021331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21219298.

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

Adding to 1232420021331 its reverse (1331200242321), we get a palindrome (2563620263652).

The spelling of 1232420021331 in words is "one trillion, two hundred thirty-two billion, four hundred twenty million, twenty-one thousand, three hundred thirty-one".