81082326031 has 8 divisors (see below), whose sum is σ = 94637122560. Its totient is φ = 68020431288.

The previous prime is 81082326011. The next prime is 81082326037. The reversal of 81082326031 is 13062328018.

It is a happy number.

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 81082326031 - 2¹³ = 81082317839 is a prime.

It is a super-2 number, since 2×81082326031² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (81082326037) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123225091 + ... + 123225748.

It is an arithmetic number, because the mean of its divisors is an integer number (11829640320).

Almost surely, 2^81082326031 is an apocalyptic number.

81082326031 is a deficient number, since it is larger than the sum of its proper divisors (13554796529).

81082326031 is a wasteful number, since it uses less digits than its factorization.

81082326031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246450893.

The product of its (nonzero) digits is 13824, while the sum is 34.

The spelling of 81082326031 in words is "eighty-one billion, eighty-two million, three hundred twenty-six thousand, thirty-one".