1238445721030 has 96 divisors (see below), whose sum is σ = 2614994189280. Its totient is φ = 421038858240.

The previous prime is 1238445720991. The next prime is 1238445721061. The reversal of 1238445721030 is 301275448321.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 90436864 + ... + 90450556.

It is an arithmetic number, because the mean of its divisors is an integer number (27239522805).

Almost surely, 2^{1238445721030} is an apocalyptic number.

1238445721030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1238445721030 is an abundant number, since it is smaller than the sum of its proper divisors (1376548468250).

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

1238445721030 is a wasteful number, since it uses less digits than its factorization.

1238445721030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15254 (or 15247 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 40.

The spelling of 1238445721030 in words is "one trillion, two hundred thirty-eight billion, four hundred forty-five million, seven hundred twenty-one thousand, thirty".