31023020230230 has 128 divisors (see below), whose sum is σ = 86370375168000. Its totient is φ = 6984442016640.

The previous prime is 31023020230211. The next prime is 31023020230231. The reversal of 31023020230230 is 3203202032013.

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 = 31023020230197 and 31023020230206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31023020230231) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 147615925 + ... + 147825935.

It is an arithmetic number, because the mean of its divisors is an integer number (674768556000).

Almost surely, 2^{31023020230230} is an apocalyptic number.

31023020230230 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 31023020230230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43185187584000).

31023020230230 is an abundant number, since it is smaller than the sum of its proper divisors (55347354937770).

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

31023020230230 is a wasteful number, since it uses less digits than its factorization.

31023020230230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220594.

The product of its (nonzero) digits is 1296, while the sum is 21.

Adding to 31023020230230 its reverse (3203202032013), we get a palindrome (34226222262243).

The spelling of 31023020230230 in words is "thirty-one trillion, twenty-three billion, twenty million, two hundred thirty thousand, two hundred thirty".