231212030123011 has 8 divisors (see below), whose sum is σ = 264243662647040. Its totient is φ = 198180733225608.

The previous prime is 231212030122979. The next prime is 231212030123023. The reversal of 231212030123011 is 110321030212132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 231212030123011 - 2⁵ = 231212030122979 is a prime.

It is a super-2 number, since 2×231212030123011² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231212030123051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82428711 + ... + 85187536.

It is an arithmetic number, because the mean of its divisors is an integer number (33030457830880).

Almost surely, 2^{231212030123011} is an apocalyptic number.

231212030123011 is a deficient number, since it is larger than the sum of its proper divisors (33031632524029).

231212030123011 is a wasteful number, since it uses less digits than its factorization.

231212030123011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167813313.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 231212030123011 its reverse (110321030212132), we get a palindrome (341533060335143).

The spelling of 231212030123011 in words is "two hundred thirty-one trillion, two hundred twelve billion, thirty million, one hundred twenty-three thousand, eleven".