1201100310 has 72 divisors (see below), whose sum is σ = 3183564384. Its totient is φ = 314184000.

The previous prime is 1201100293. The next prime is 1201100311. The reversal of 1201100310 is 130011021.

It is a super-2 number, since 2×1201100310² = 2885283909364192200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 1201100292 and 1201100301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201100311) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 250435 + ... + 255185.

It is an arithmetic number, because the mean of its divisors is an integer number (44216172).

Almost surely, 2^1201100310 is an apocalyptic number.

1201100310 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 1201100310, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1591782192).

1201100310 is an abundant number, since it is smaller than the sum of its proper divisors (1982464074).

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

1201100310 is a wasteful number, since it uses less digits than its factorization.

1201100310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4870 (or 4814 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

The square root of 1201100310 is about 34656.8941193524. The cubic root of 1201100310 is about 1062.9832626991.

Adding to 1201100310 its reverse (130011021), we get a palindrome (1331111331).

The spelling of 1201100310 in words is "one billion, two hundred one million, one hundred thousand, three hundred ten".