1209608520120 has 3072 divisors, whose sum is σ = 5934464040960. Its totient is φ = 213199257600.

The previous prime is 1209608520053. The next prime is 1209608520121. The reversal of 1209608520120 is 210258069021.

1209608520120 is a `hidden beast` number, since 1 + 2 + 0 + 9 + 6 + 0 + 8 + 520 + 120 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1209608520121) by changing a digit.

It is a polite number, since it can be written in 767 ways as a sum of consecutive naturals, for example, 11743771989 + ... + 11743772091.

It is an arithmetic number, because the mean of its divisors is an integer number (1931791680).

Almost surely, 2^{1209608520120} is an apocalyptic number.

1209608520120 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 1209608520120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2967232020480).

1209608520120 is an abundant number, since it is smaller than the sum of its proper divisors (4724855520840).

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

1209608520120 is a wasteful number, since it uses less digits than its factorization.

1209608520120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248 (or 232 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The spelling of 1209608520120 in words is "one trillion, two hundred nine billion, six hundred eight million, five hundred twenty thousand, one hundred twenty".