31420444422401 has 8 divisors (see below), whose sum is σ = 33075967355520. Its totient is φ = 29765103022512.

The previous prime is 31420444422397. The next prime is 31420444422403. The reversal of 31420444422401 is 10422444402413.

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 31420444422401 - 2² = 31420444422397 is a prime.

It is a super-2 number, since 2×31420444422401² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (31420444422403) 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, 45027950 + ... + 45720423.

It is an arithmetic number, because the mean of its divisors is an integer number (4134495919440).

Almost surely, 2^{31420444422401} is an apocalyptic number.

It is an amenable number.

31420444422401 is a deficient number, since it is larger than the sum of its proper divisors (1655522933119).

31420444422401 is a wasteful number, since it uses less digits than its factorization.

31420444422401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90766615.

The product of its (nonzero) digits is 98304, while the sum is 35.

Adding to 31420444422401 its reverse (10422444402413), we get a palindrome (41842888824814).

The spelling of 31420444422401 in words is "thirty-one trillion, four hundred twenty billion, four hundred forty-four million, four hundred twenty-two thousand, four hundred one".