1238631020320 has 96 divisors (see below), whose sum is σ = 2950403291136. Its totient is φ = 491368550400.

The previous prime is 1238631020299. The next prime is 1238631020351. The reversal of 1238631020320 is 230201368321.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63408955 + ... + 63428485.

It is an arithmetic number, because the mean of its divisors is an integer number (30733367616).

Almost surely, 2^{1238631020320} is an apocalyptic number.

1238631020320 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 1238631020320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1475201645568).

1238631020320 is an abundant number, since it is smaller than the sum of its proper divisors (1711772270816).

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

1238631020320 is a wasteful number, since it uses less digits than its factorization.

1238631020320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22794 (or 22786 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 31.

Adding to 1238631020320 its reverse (230201368321), we get a palindrome (1468832388641).

The spelling of 1238631020320 in words is "one trillion, two hundred thirty-eight billion, six hundred thirty-one million, twenty thousand, three hundred twenty".