19303213700 has 54 divisors (see below), whose sum is σ = 42291021066. Its totient is φ = 7647100160.

The previous prime is 19303213619. The next prime is 19303213729. The reversal of 19303213700 is 731230391.

It can be written as a sum of positive squares in 3 ways, for example, as 109327936 + 19193885764 = 10456^2 + 138542^2 .

It is a super-2 number, since 2×19303213700² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 14768447 + ... + 14769753.

Almost surely, 2^19303213700 is an apocalyptic number.

19303213700 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 19303213700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21145510533).

19303213700 is an abundant number, since it is smaller than the sum of its proper divisors (22987807366).

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

19303213700 is a wasteful number, since it uses less digits than its factorization.

19303213700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2741 (or 1427 counting only the distinct ones).

The product of its (nonzero) digits is 3402, while the sum is 29.

The spelling of 19303213700 in words is "nineteen billion, three hundred three million, two hundred thirteen thousand, seven hundred".