31421367270 has 96 divisors (see below), whose sum is σ = 82885420800. Its totient is φ = 8257499712.

The previous prime is 31421367259. The next prime is 31421367301. The reversal of 31421367270 is 7276312413.

31421367270 is a `hidden beast` number, since 3 + 1 + 4 + 21 + 367 + 270 = 666.

It is a super-2 number, since 2×31421367270² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3124911 + ... + 3134949.

It is an arithmetic number, because the mean of its divisors is an integer number (863389800).

Almost surely, 2^31421367270 is an apocalyptic number.

31421367270 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 31421367270, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41442710400).

31421367270 is an abundant number, since it is smaller than the sum of its proper divisors (51464053530).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31421367270 is a wasteful number, since it uses less digits than its factorization.

31421367270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10554 (or 10551 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 36.

Adding to 31421367270 its reverse (7276312413), we get a palindrome (38697679683).

The spelling of 31421367270 in words is "thirty-one billion, four hundred twenty-one million, three hundred sixty-seven thousand, two hundred seventy".