31230032011 has 8 divisors (see below), whose sum is σ = 31985881344. Its totient is φ = 30480353280.

The previous prime is 31230031969. The next prime is 31230032023. The reversal of 31230032011 is 11023003213.

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 31230032011 - 2⁹ = 31230031499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31230036011) 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, 1532406 + ... + 1552651.

It is an arithmetic number, because the mean of its divisors is an integer number (3998235168).

Almost surely, 2^31230032011 is an apocalyptic number.

31230032011 is a deficient number, since it is larger than the sum of its proper divisors (755849333).

31230032011 is a wasteful number, since it uses less digits than its factorization.

31230032011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3085301.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 31230032011 its reverse (11023003213), we get a palindrome (42253035224).

The spelling of 31230032011 in words is "thirty-one billion, two hundred thirty million, thirty-two thousand, eleven".