1030312211320 has 128 divisors (see below), whose sum is σ = 2706767648640. Its totient is φ = 345657507840.

The previous prime is 1030312211153. The next prime is 1030312211321. The reversal of 1030312211320 is 231122130301.

It is a super-2 number, since 2×1030312211320² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1030312211321) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3140164 + ... + 3452716.

It is an arithmetic number, because the mean of its divisors is an integer number (21146622255).

Almost surely, 2^{1030312211320} is an apocalyptic number.

1030312211320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1030312211320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1353383824320).

1030312211320 is an abundant number, since it is smaller than the sum of its proper divisors (1676455437320).

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

1030312211320 is a wasteful number, since it uses less digits than its factorization.

1030312211320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312825 (or 312821 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 1030312211320 its reverse (231122130301), we get a palindrome (1261434341621).

The spelling of 1030312211320 in words is "one trillion, thirty billion, three hundred twelve million, two hundred eleven thousand, three hundred twenty".