231748271370 has 576 divisors, whose sum is σ = 792918846720. Its totient is φ = 47667502080.

The previous prime is 231748271333. The next prime is 231748271371. The reversal of 231748271370 is 73172847132.

231748271370 is a `hidden beast` number, since 2 + 3 + 1 + 7 + 4 + 8 + 271 + 370 = 666.

It is a super-2 number, since 2×231748271370² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (231748271371) by changing a digit.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 224344374 + ... + 224345406.

It is an arithmetic number, because the mean of its divisors is an integer number (1376595220).

Almost surely, 2^231748271370 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231748271370, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (396459423360).

231748271370 is an abundant number, since it is smaller than the sum of its proper divisors (561170575350).

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

231748271370 is a wasteful number, since it uses less digits than its factorization.

231748271370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1193 (or 1170 counting only the distinct ones).

The product of its (nonzero) digits is 395136, while the sum is 45.

The spelling of 231748271370 in words is "two hundred thirty-one billion, seven hundred forty-eight million, two hundred seventy-one thousand, three hundred seventy".