20299311270 has 96 divisors (see below), whose sum is σ = 60458711040. Its totient is φ = 4629015360.

The previous prime is 20299311247. The next prime is 20299311293. The reversal of 20299311270 is 7211399202.

It is an interprime number because it is at equal distance from previous prime (20299311247) and next prime (20299311293).

It is a Curzon number.

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, 234151 + ... + 308909.

It is an arithmetic number, because the mean of its divisors is an integer number (629778240).

Almost surely, 2^20299311270 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20299311270, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30229355520).

20299311270 is an abundant number, since it is smaller than the sum of its proper divisors (40159399770).

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

20299311270 is a wasteful number, since it uses less digits than its factorization.

20299311270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75210 (or 75207 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The spelling of 20299311270 in words is "twenty billion, two hundred ninety-nine million, three hundred eleven thousand, two hundred seventy".