231011134 has 4 divisors (see below), whose sum is σ = 346516704. Its totient is φ = 115505566.

The previous prime is 231011119. The next prime is 231011173. The reversal of 231011134 is 431110132.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×231011134² = 106732288063931912, which 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 (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57752782 + ... + 57752785.

It is an arithmetic number, because the mean of its divisors is an integer number (86629176).

Almost surely, 2^231011134 is an apocalyptic number.

231011134 is a deficient number, since it is larger than the sum of its proper divisors (115505570).

231011134 is a wasteful number, since it uses less digits than its factorization.

231011134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115505569.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 231011134 is about 15199.0504308657. The cubic root of 231011134 is about 613.5891018039.

Adding to 231011134 its reverse (431110132), we get a palindrome (662121266).

The spelling of 231011134 in words is "two hundred thirty-one million, eleven thousand, one hundred thirty-four".