31443340411230 has 128 divisors (see below), whose sum is σ = 85908403961856. Its totient is φ = 7290810384000.

The previous prime is 31443340411213. The next prime is 31443340411247. The reversal of 31443340411230 is 3211404334413.

It is an interprime number because it is at equal distance from previous prime (31443340411213) and next prime (31443340411247).

It is a super-2 number, since 2×31443340411230² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 31443340411191 and 31443340411200.

It is a congruent number.

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, 152053405 + ... + 152260055.

It is an arithmetic number, because the mean of its divisors is an integer number (671159405952).

Almost surely, 2^{31443340411230} is an apocalyptic number.

31443340411230 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 31443340411230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42954201980928).

31443340411230 is an abundant number, since it is smaller than the sum of its proper divisors (54465063550626).

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

31443340411230 is a wasteful number, since it uses less digits than its factorization.

31443340411230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226742.

The product of its (nonzero) digits is 41472, while the sum is 33.

Adding to 31443340411230 its reverse (3211404334413), we get a palindrome (34654744745643).

The spelling of 31443340411230 in words is "thirty-one trillion, four hundred forty-three billion, three hundred forty million, four hundred eleven thousand, two hundred thirty".