31031223212001 has 8 divisors (see below), whose sum is σ = 41776662965440. Its totient is φ = 20486632799952.

The previous prime is 31031223211979. The next prime is 31031223212029. The reversal of 31031223212001 is 10021232213013.

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

It is not a de Polignac number, because 31031223212001 - 2¹¹ = 31031223209953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31031223212071) 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, 50212334986 + ... + 50212335603.

It is an arithmetic number, because the mean of its divisors is an integer number (5222082870680).

Almost surely, 2^{31031223212001} is an apocalyptic number.

It is an amenable number.

31031223212001 is a deficient number, since it is larger than the sum of its proper divisors (10745439753439).

31031223212001 is a wasteful number, since it uses less digits than its factorization.

31031223212001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100424670695.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 31031223212001 its reverse (10021232213013), we get a palindrome (41052455425014).

The spelling of 31031223212001 in words is "thirty-one trillion, thirty-one billion, two hundred twenty-three million, two hundred twelve thousand, one".