231012111302 has 16 divisors (see below), whose sum is σ = 396097827840. Its totient is φ = 98985924168.

The previous prime is 231012111289. The next prime is 231012111307. The reversal of 231012111302 is 203111210132.

231012111302 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×231012111302² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231012111307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1530902 + ... + 1675017.

It is an arithmetic number, because the mean of its divisors is an integer number (24756114240).

Almost surely, 2^231012111302 is an apocalyptic number.

231012111302 is a deficient number, since it is larger than the sum of its proper divisors (165085716538).

231012111302 is a wasteful number, since it uses less digits than its factorization.

231012111302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3211075.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 231012111302 its reverse (203111210132), we get a palindrome (434123321434).

The spelling of 231012111302 in words is "two hundred thirty-one billion, twelve million, one hundred eleven thousand, three hundred two".