231302031030 has 192 divisors, whose sum is σ = 717481110528. Its totient is φ = 52518326400.

The previous prime is 231302030983. The next prime is 231302031031. The reversal of 231302031030 is 30130203132.

231302031030 is a `hidden beast` number, since 23 + 1 + 302 + 0 + 310 + 30 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 231302030994 and 231302031012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231302031031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2523484 + ... + 2613536.

It is an arithmetic number, because the mean of its divisors is an integer number (3736880784).

Almost surely, 2^231302031030 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231302031030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (358740555264).

231302031030 is an abundant number, since it is smaller than the sum of its proper divisors (486179079498).

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

231302031030 is a wasteful number, since it uses less digits than its factorization.

231302031030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90233 (or 90221 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

Adding to 231302031030 its reverse (30130203132), we get a palindrome (261432234162).

The spelling of 231302031030 in words is "two hundred thirty-one billion, three hundred two million, thirty-one thousand, thirty".