31442202214 has 4 divisors (see below), whose sum is σ = 47163303324. Its totient is φ = 15721101106.

The previous prime is 31442202191. The next prime is 31442202217. The reversal of 31442202214 is 41220224413.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×31442202214² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31442202217) 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 as a sum of consecutive naturals, namely, 7860550552 + ... + 7860550555.

It is an arithmetic number, because the mean of its divisors is an integer number (11790825831).

Almost surely, 2^31442202214 is an apocalyptic number.

31442202214 is a deficient number, since it is larger than the sum of its proper divisors (15721101110).

31442202214 is a wasteful number, since it uses less digits than its factorization.

31442202214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15721101109.

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 31442202214 its reverse (41220224413), we get a palindrome (72662426627).

The spelling of 31442202214 in words is "thirty-one billion, four hundred forty-two million, two hundred two thousand, two hundred fourteen".