112743621520 has 40 divisors (see below), whose sum is σ = 262167115320. Its totient is φ = 45090877440.

The previous prime is 112743621511. The next prime is 112743621539. The reversal of 112743621520 is 25126347211.

It can be written as a sum of positive squares in 4 ways, for example, as 5537145744 + 107206475776 = 74412^2 + 327424^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×112743621520² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 469600 + ... + 667840.

It is an arithmetic number, because the mean of its divisors is an integer number (6554177883).

Almost surely, 2^112743621520 is an apocalyptic number.

112743621520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

112743621520 is an abundant number, since it is smaller than the sum of its proper divisors (149423493800).

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

112743621520 is a wasteful number, since it uses less digits than its factorization.

112743621520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205363 (or 205357 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 34.

Adding to 112743621520 its reverse (25126347211), we get a palindrome (137869968731).

The spelling of 112743621520 in words is "one hundred twelve billion, seven hundred forty-three million, six hundred twenty-one thousand, five hundred twenty".