231220212432001 has 8 divisors (see below), whose sum is σ = 249010920593064. Its totient is φ = 213430152552960.

The previous prime is 231220212431977. The next prime is 231220212432067. The reversal of 231220212432001 is 100234212022132.

It can be written as a sum of positive squares in 4 ways, for example, as 21954622451776 + 209265589980225 = 4685576^2 + 14466015^2 .

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 231220212432001 - 2²¹ = 231220210334849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231220212432071) 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, 161329606 + ... + 162756511.

It is an arithmetic number, because the mean of its divisors is an integer number (31126365074133).

Almost surely, 2^{231220212432001} is an apocalyptic number.

It is an amenable number.

231220212432001 is a deficient number, since it is larger than the sum of its proper divisors (17790708161063).

231220212432001 is a wasteful number, since it uses less digits than its factorization.

231220212432001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324141011.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 231220212432001 its reverse (100234212022132), we get a palindrome (331454424454133).

The spelling of 231220212432001 in words is "two hundred thirty-one trillion, two hundred twenty billion, two hundred twelve million, four hundred thirty-two thousand, one".