1101231313020 has 72 divisors (see below), whose sum is σ = 3430682795904. Its totient is φ = 285724879488.

The previous prime is 1101231313019. The next prime is 1101231313099. The reversal of 1101231313020 is 203131321011.

1101231313020 is a `hidden beast` number, since 1 + 101 + 231 + 31 + 302 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1101231312984 and 1101231313002.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 82668364 + ... + 82681683.

Almost surely, 2^{1101231313020} is an apocalyptic number.

1101231313020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1101231313020 is an abundant number, since it is smaller than the sum of its proper divisors (2329451482884).

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

1101231313020 is a wasteful number, since it uses less digits than its factorization.

1101231313020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165350099 (or 165350094 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 1101231313020 its reverse (203131321011), we get a palindrome (1304362634031).

The spelling of 1101231313020 in words is "one trillion, one hundred one billion, two hundred thirty-one million, three hundred thirteen thousand, twenty".