231101223130 has 32 divisors (see below), whose sum is σ = 437989032000. Its totient is φ = 87552594432.

The previous prime is 231101223127. The next prime is 231101223139. The reversal of 231101223130 is 31322101132.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a junction number, because it is equal to n+sod(n) for n = 231101223098 and 231101223107.

It is not an unprimeable number, because it can be changed into a prime (231101223139) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 590346 + ... + 900394.

It is an arithmetic number, because the mean of its divisors is an integer number (13687157250).

Almost surely, 2^231101223130 is an apocalyptic number.

231101223130 is a deficient number, since it is larger than the sum of its proper divisors (206887808870).

231101223130 is a wasteful number, since it uses less digits than its factorization.

231101223130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313998.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 231101223130 its reverse (31322101132), we get a palindrome (262423324262).

The spelling of 231101223130 in words is "two hundred thirty-one billion, one hundred one million, two hundred twenty-three thousand, one hundred thirty".