31201026 has 8 divisors (see below), whose sum is σ = 62402064. Its totient is φ = 10400340.

The previous prime is 31201007. The next prime is 31201039. The reversal of 31201026 is 62010213.

It is a sphenic number, since it is the product of 3 distinct primes.

31201026 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 31200996 and 31201014.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2600080 + ... + 2600091.

It is an arithmetic number, because the mean of its divisors is an integer number (7800258).

Almost surely, 2^31201026 is an apocalyptic number.

31201026 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

31201026 is a wasteful number, since it uses less digits than its factorization.

31201026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5200176.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 31201026 is about 5585.7878584851. The cubic root of 31201026 is about 314.8156341143.

Adding to 31201026 its reverse (62010213), we get a palindrome (93211239).

The spelling of 31201026 in words is "thirty-one million, two hundred one thousand, twenty-six".