13120221203430 has 64 divisors (see below), whose sum is σ = 34351472729088. Its totient is φ = 3180627452160.

The previous prime is 13120221203393. The next prime is 13120221203443. The reversal of 13120221203430 is 3430212202131.

It is a self number, because there is not a number n which added to its sum of digits gives 13120221203430.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 56871594 + ... + 57101826.

It is an arithmetic number, because the mean of its divisors is an integer number (536741761392).

Almost surely, 2^{13120221203430} is an apocalyptic number.

13120221203430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13120221203430 is an abundant number, since it is smaller than the sum of its proper divisors (21231251525658).

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

13120221203430 is a wasteful number, since it uses less digits than its factorization.

13120221203430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402941.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 13120221203430 its reverse (3430212202131), we get a palindrome (16550433405561).

The spelling of 13120221203430 in words is "thirteen trillion, one hundred twenty billion, two hundred twenty-one million, two hundred three thousand, four hundred thirty".