31041030 has 32 divisors (see below), whose sum is σ = 77739264. Its totient is φ = 7917536.

The previous prime is 31041029. The next prime is 31041061. The reversal of 31041030 is 3014013.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 31040997 and 31041015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21804 + ... + 23183.

It is an arithmetic number, because the mean of its divisors is an integer number (2429352).

Almost surely, 2^31041030 is an apocalyptic number.

31041030 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

31041030 is an abundant number, since it is smaller than the sum of its proper divisors (46698234).

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

31041030 is a wasteful number, since it uses less digits than its factorization.

31041030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45020.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 31041030 is about 5571.4477472197. The cubic root of 31041030 is about 314.2765964494.

Adding to 31041030 its reverse (3014013), we get a palindrome (34055043).

The spelling of 31041030 in words is "thirty-one million, forty-one thousand, thirty".