1263601332012 has 24 divisors (see below), whose sum is σ = 2948427953856. Its totient is φ = 421196894608.

The previous prime is 1263601331999. The next prime is 1263601332013. The reversal of 1263601332012 is 2102331063621.

It is a super-4 number, since 4×1263601332012⁴ (a number of 50 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (1263601332013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1320163 + ... + 2066405.

It is an arithmetic number, because the mean of its divisors is an integer number (122851164744).

Almost surely, 2^{1263601332012} is an apocalyptic number.

1263601332012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1263601332012 is an abundant number, since it is smaller than the sum of its proper divisors (1684826621844).

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

1263601332012 is a wasteful number, since it uses less digits than its factorization.

1263601332012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 887357 (or 887355 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 30.

Adding to 1263601332012 its reverse (2102331063621), we get a palindrome (3365932395633).

The spelling of 1263601332012 in words is "one trillion, two hundred sixty-three billion, six hundred one million, three hundred thirty-two thousand, twelve".