1023300001220 has 48 divisors (see below), whose sum is σ = 2456011987968. Its totient is φ = 350832574080.

The previous prime is 1023300001111. The next prime is 1023300001279. The reversal of 1023300001220 is 221000033201.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 1023300001195 and 1023300001204.

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, 4075730 + ... + 4319510.

It is an arithmetic number, because the mean of its divisors is an integer number (51166916416).

Almost surely, 2^{1023300001220} is an apocalyptic number.

1023300001220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1023300001220 is an abundant number, since it is smaller than the sum of its proper divisors (1432711986748).

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

1023300001220 is a wasteful number, since it uses less digits than its factorization.

1023300001220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273780 (or 273778 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 1023300001220 its reverse (221000033201), we get a palindrome (1244300034421).

The spelling of 1023300001220 in words is "one trillion, twenty-three billion, three hundred million, one thousand, two hundred twenty".