1313021572170 has 256 divisors, whose sum is σ = 3984497049600. Its totient is φ = 268980491520.

The previous prime is 1313021572153. The next prime is 1313021572171. The reversal of 1313021572170 is 712751203131.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (1313021572171) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 131205307 + ... + 131215313.

It is an arithmetic number, because the mean of its divisors is an integer number (15564441600).

Almost surely, 2^{1313021572170} is an apocalyptic number.

1313021572170 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1313021572170, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1992248524800).

1313021572170 is an abundant number, since it is smaller than the sum of its proper divisors (2671475477430).

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

1313021572170 is a wasteful number, since it uses less digits than its factorization.

1313021572170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10833.

The product of its (nonzero) digits is 8820, while the sum is 33.

The spelling of 1313021572170 in words is "one trillion, three hundred thirteen billion, twenty-one million, five hundred seventy-two thousand, one hundred seventy".