231242220030 has 16 divisors (see below), whose sum is σ = 554981328144. Its totient is φ = 61664592000.

The previous prime is 231242220019. The next prime is 231242220037. The reversal of 231242220030 is 30022242132.

It is a junction number, because it is equal to n+sod(n) for n = 231242219979 and 231242220006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231242220037) 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, 3854036971 + ... + 3854037030.

It is an arithmetic number, because the mean of its divisors is an integer number (34686333009).

Almost surely, 2^231242220030 is an apocalyptic number.

231242220030 is an abundant number, since it is smaller than the sum of its proper divisors (323739108114).

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

231242220030 is a wasteful number, since it uses less digits than its factorization.

231242220030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7708074011.

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 231242220030 its reverse (30022242132), we get a palindrome (261264462162).

The spelling of 231242220030 in words is "two hundred thirty-one billion, two hundred forty-two million, two hundred twenty thousand, thirty".