231232211004 has 12 divisors (see below), whose sum is σ = 539541825704. Its totient is φ = 77077403664.

The previous prime is 231232210987. The next prime is 231232211053. The reversal of 231232211004 is 400112232132.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9634675447 + ... + 9634675470.

Almost surely, 2^231232211004 is an apocalyptic number.

It is an amenable number.

231232211004 is an abundant number, since it is smaller than the sum of its proper divisors (308309614700).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231232211004 is a wasteful number, since it uses less digits than its factorization.

231232211004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19269350924 (or 19269350922 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 231232211004 its reverse (400112232132), we get a palindrome (631344443136).

The spelling of 231232211004 in words is "two hundred thirty-one billion, two hundred thirty-two million, two hundred eleven thousand, four".