1303261989120 has 576 divisors, whose sum is σ = 5692038320640. Its totient is φ = 274973294592.

The previous prime is 1303261989053. The next prime is 1303261989121. The reversal of 1303261989120 is 219891623031.

It is a happy number.

1303261989120 is a `hidden beast` number, since 1 + 3 + 0 + 3 + 2 + 619 + 8 + 9 + 1 + 20 = 666.

It is a tau number, because it is divible by the number of its divisors (576).

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 (1303261989121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2937762 + ... + 3352158.

Almost surely, 2^{1303261989120} is an apocalyptic number.

1303261989120 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 1303261989120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2846019160320).

1303261989120 is an abundant number, since it is smaller than the sum of its proper divisors (4388776331520).

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

1303261989120 is a wasteful number, since it uses less digits than its factorization.

1303261989120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414447 (or 414427 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 45.

The spelling of 1303261989120 in words is "one trillion, three hundred three billion, two hundred sixty-one million, nine hundred eighty-nine thousand, one hundred twenty".