231322102011 has 96 divisors (see below), whose sum is σ = 460750338048. Its totient is φ = 107925592320.

The previous prime is 231322102009. The next prime is 231322102013. The reversal of 231322102011 is 110201223132.

231322102011 is a `hidden beast` number, since 231 + 322 + 102 + 0 + 11 = 666.

It is an interprime number because it is at equal distance from previous prime (231322102009) and next prime (231322102013).

It is not a de Polignac number, because 231322102011 - 2¹ = 231322102009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (231322102013) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 13651 + ... + 680316.

It is an arithmetic number, because the mean of its divisors is an integer number (4799482688).

Almost surely, 2^231322102011 is an apocalyptic number.

231322102011 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

231322102011 is a deficient number, since it is larger than the sum of its proper divisors (229428236037).

231322102011 is a wasteful number, since it uses less digits than its factorization.

231322102011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 694041 (or 694038 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 231322102011 its reverse (110201223132), we get a palindrome (341523325143).

It can be divided in two parts, 231322 and 102011, that added together give a palindrome (333333).

The spelling of 231322102011 in words is "two hundred thirty-one billion, three hundred twenty-two million, one hundred two thousand, eleven".