1201279310910 has 256 divisors, whose sum is σ = 3866076518400. Its totient is φ = 259293146112.

The previous prime is 1201279310857. The next prime is 1201279310951. The reversal of 1201279310910 is 190139721021.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 11186392 + ... + 11293268.

It is an arithmetic number, because the mean of its divisors is an integer number (15101861400).

Almost surely, 2^{1201279310910} is an apocalyptic number.

1201279310910 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 1201279310910, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1933038259200).

1201279310910 is an abundant number, since it is smaller than the sum of its proper divisors (2664797207490).

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

1201279310910 is a wasteful number, since it uses less digits than its factorization.

1201279310910 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107232 (or 107226 counting only the distinct ones).

The product of its (nonzero) digits is 6804, while the sum is 36.

The spelling of 1201279310910 in words is "one trillion, two hundred one billion, two hundred seventy-nine million, three hundred ten thousand, nine hundred ten".