231022011102330 has 128 divisors (see below), whose sum is σ = 635671551541248. Its totient is φ = 52637587782912.

The previous prime is 231022011102319. The next prime is 231022011102401. The reversal of 231022011102330 is 33201110220132.

It is a super-2 number, since 2×231022011102330² (a number of 30 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 231022011102297 and 231022011102306.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 142601212 + ... + 144212168.

It is an arithmetic number, because the mean of its divisors is an integer number (4966183996416).

Almost surely, 2^{231022011102330} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231022011102330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (317835775770624).

231022011102330 is an abundant number, since it is smaller than the sum of its proper divisors (404649540438918).

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

231022011102330 is a wasteful number, since it uses less digits than its factorization.

231022011102330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1613140.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 231022011102330 its reverse (33201110220132), we get a palindrome (264223121322462).

The spelling of 231022011102330 in words is "two hundred thirty-one trillion, twenty-two billion, eleven million, one hundred two thousand, three hundred thirty".