1220103231330 has 32 divisors (see below), whose sum is σ = 2971952950464. Its totient is φ = 320504728896.

The previous prime is 1220103231301. The next prime is 1220103231401. The reversal of 1220103231330 is 331323010221.

It is a junction number, because it is equal to n+sod(n) for n = 1220103231297 and 1220103231306.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 303506257 + ... + 303510276.

It is an arithmetic number, because the mean of its divisors is an integer number (92873529702).

Almost surely, 2^{1220103231330} is an apocalyptic number.

1220103231330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1220103231330 is an abundant number, since it is smaller than the sum of its proper divisors (1751849719134).

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

1220103231330 is a wasteful number, since it uses less digits than its factorization.

1220103231330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 607016610.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 1220103231330 its reverse (331323010221), we get a palindrome (1551426241551).

The spelling of 1220103231330 in words is "one trillion, two hundred twenty billion, one hundred three million, two hundred thirty-one thousand, three hundred thirty".