231030220130102 has 16 divisors (see below), whose sum is σ = 349536790825200. Its totient is φ = 114519704382720.

The previous prime is 231030220130051. The next prime is 231030220130119. The reversal of 231030220130102 is 201031022030132.

It is a super-2 number, since 2×231030220130102² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 436700327 + ... + 437229042.

It is an arithmetic number, because the mean of its divisors is an integer number (21846049426575).

Almost surely, 2^{231030220130102} is an apocalyptic number.

231030220130102 is a deficient number, since it is larger than the sum of its proper divisors (118506570695098).

231030220130102 is a wasteful number, since it uses less digits than its factorization.

231030220130102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 873930511.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 231030220130102 its reverse (201031022030132), we get a palindrome (432061242160234).

The spelling of 231030220130102 in words is "two hundred thirty-one trillion, thirty billion, two hundred twenty million, one hundred thirty thousand, one hundred two".