1210103011320 has 128 divisors (see below), whose sum is σ = 4150805783040. Its totient is φ = 276469562880.

The previous prime is 1210103011297. The next prime is 1210103011331. The reversal of 1210103011320 is 231103010121.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1210103011320.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1533435 + ... + 2184405.

It is an arithmetic number, because the mean of its divisors is an integer number (32428170180).

Almost surely, 2^{1210103011320} is an apocalyptic number.

1210103011320 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 1210103011320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2075402891520).

1210103011320 is an abundant number, since it is smaller than the sum of its proper divisors (2940702771720).

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

1210103011320 is a wasteful number, since it uses less digits than its factorization.

1210103011320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 653205 (or 653201 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 1210103011320 its reverse (231103010121), we get a palindrome (1441206021441).

The spelling of 1210103011320 in words is "one trillion, two hundred ten billion, one hundred three million, eleven thousand, three hundred twenty".