231143443030 has 16 divisors (see below), whose sum is σ = 437955997680. Its totient is φ = 87591199392.

The previous prime is 231143443019. The next prime is 231143443033. The reversal of 231143443030 is 30344341132.

It is a self number, because there is not a number n which added to its sum of digits gives 231143443030.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231143443033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 608272029 + ... + 608272408.

It is an arithmetic number, because the mean of its divisors is an integer number (27372249855).

Almost surely, 2^231143443030 is an apocalyptic number.

231143443030 is a deficient number, since it is larger than the sum of its proper divisors (206812554650).

231143443030 is a wasteful number, since it uses less digits than its factorization.

231143443030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1216544463.

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 231143443030 its reverse (30344341132), we get a palindrome (261487784162).

The spelling of 231143443030 in words is "two hundred thirty-one billion, one hundred forty-three million, four hundred forty-three thousand, thirty".