231240001011 has 16 divisors (see below), whose sum is σ = 330670909440. Its totient is φ = 143290723680.

The previous prime is 231240000989. The next prime is 231240001073. The reversal of 231240001011 is 110100042132.

It is not a de Polignac number, because 231240001011 - 2⁷ = 231240000883 is a prime.

It is not an unprimeable number, because it can be changed into a prime (231240001211) 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, 38269075 + ... + 38275116.

It is an arithmetic number, because the mean of its divisors is an integer number (20666931840).

Almost surely, 2^231240001011 is an apocalyptic number.

231240001011 is a deficient number, since it is larger than the sum of its proper divisors (99430908429).

231240001011 is a wasteful number, since it uses less digits than its factorization.

231240001011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76544266.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 231240001011 its reverse (110100042132), we get a palindrome (341340043143).

The spelling of 231240001011 in words is "two hundred thirty-one billion, two hundred forty million, one thousand, eleven".