1303120431030 has 128 divisors (see below), whose sum is σ = 3426282270720. Its totient is φ = 314568880640.

The previous prime is 1303120431013. The next prime is 1303120431043. The reversal of 1303120431030 is 301340213031.

It is a junction number, because it is equal to n+sod(n) for n = 1303120430988 and 1303120431006.

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, 315752827 + ... + 315756953.

It is an arithmetic number, because the mean of its divisors is an integer number (26767830240).

Almost surely, 2^{1303120431030} is an apocalyptic number.

1303120431030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1303120431030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1713141135360).

1303120431030 is an abundant number, since it is smaller than the sum of its proper divisors (2123161839690).

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

1303120431030 is a wasteful number, since it uses less digits than its factorization.

1303120431030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7974.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 1303120431030 its reverse (301340213031), we get a palindrome (1604460644061).

The spelling of 1303120431030 in words is "one trillion, three hundred three billion, one hundred twenty million, four hundred thirty-one thousand, thirty".