31400221233 has 8 divisors (see below), whose sum is σ = 42033763296. Its totient is φ = 20850080000.

The previous prime is 31400221231. The next prime is 31400221247. The reversal of 31400221233 is 33212200413.

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 31400221233 - 2¹ = 31400221231 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31400221231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20849328 + ... + 20850833.

It is an arithmetic number, because the mean of its divisors is an integer number (5254220412).

Almost surely, 2^31400221233 is an apocalyptic number.

It is an amenable number.

31400221233 is a deficient number, since it is larger than the sum of its proper divisors (10633542063).

31400221233 is a wasteful number, since it uses less digits than its factorization.

31400221233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41700415.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 31400221233 its reverse (33212200413), we get a palindrome (64612421646).

The spelling of 31400221233 in words is "thirty-one billion, four hundred million, two hundred twenty-one thousand, two hundred thirty-three".