1204231131020 has 24 divisors (see below), whose sum is σ = 2587696664784. Its totient is φ = 470490302016.

The previous prime is 1204231130989. The next prime is 1204231131067. The reversal of 1204231131020 is 201311324021.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 1204231130983 and 1204231131001.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 700133519 + ... + 700135238.

It is an arithmetic number, because the mean of its divisors is an integer number (107820694366).

Almost surely, 2^{1204231131020} is an apocalyptic number.

1204231131020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1204231131020 is an abundant number, since it is smaller than the sum of its proper divisors (1383465533764).

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

1204231131020 is a wasteful number, since it uses less digits than its factorization.

1204231131020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1400268809 (or 1400268807 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 1204231131020 its reverse (201311324021), we get a palindrome (1405542455041).

The spelling of 1204231131020 in words is "one trillion, two hundred four billion, two hundred thirty-one million, one hundred thirty-one thousand, twenty".