1017213120 has 672 divisors, whose sum is σ = 4540300800. Its totient is φ = 209848320.

The previous prime is 1017213107. The next prime is 1017213133. The reversal of 1017213120 is 213127101.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1017213107) and next prime (1017213133).

It is a tau number, because it is divible by the number of its divisors (672).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1017213093 and 1017213102.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 7318011 + ... + 7318149.

It is an arithmetic number, because the mean of its divisors is an integer number (6756400).

Almost surely, 2^1017213120 is an apocalyptic number.

1017213120 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 1017213120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2270150400).

1017213120 is an abundant number, since it is smaller than the sum of its proper divisors (3523087680).

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

1017213120 is a wasteful number, since it uses less digits than its factorization.

1017213120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194 (or 167 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 18.

The square root of 1017213120 is about 31893.7787036908. The cubic root of 1017213120 is about 1005.7050966422.

The spelling of 1017213120 in words is "one billion, seventeen million, two hundred thirteen thousand, one hundred twenty".