31426323263220 has 24 divisors (see below), whose sum is σ = 87993705137184. Its totient is φ = 8380352870176.

The previous prime is 31426323263201. The next prime is 31426323263353. The reversal of 31426323263220 is 2236232362413.

31426323263220 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×31426323263220² (a number of 28 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 (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 261886027134 + ... + 261886027253.

It is an arithmetic number, because the mean of its divisors is an integer number (3666404380716).

Almost surely, 2^{31426323263220} is an apocalyptic number.

31426323263220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

31426323263220 is an abundant number, since it is smaller than the sum of its proper divisors (56567381873964).

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

31426323263220 is a wasteful number, since it uses less digits than its factorization.

31426323263220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 523772054399 (or 523772054397 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 39.

The spelling of 31426323263220 in words is "thirty-one trillion, four hundred twenty-six billion, three hundred twenty-three million, two hundred sixty-three thousand, two hundred twenty".