1210003210020 has 96 divisors (see below), whose sum is σ = 3795902038656. Its totient is φ = 285406156800.

The previous prime is 1210003209971. The next prime is 1210003210069. The reversal of 1210003210020 is 200123000121.

It is an interprime number because it is at equal distance from previous prime (1210003209971) and next prime (1210003210069).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 1210003209978 and 1210003210005.

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, 24750421 + ... + 24799260.

It is an arithmetic number, because the mean of its divisors is an integer number (39540646236).

Almost surely, 2^{1210003210020} is an apocalyptic number.

1210003210020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1210003210020 is an abundant number, since it is smaller than the sum of its proper divisors (2585898828636).

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

1210003210020 is a wasteful number, since it uses less digits than its factorization.

1210003210020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49549741 (or 49549739 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 1210003210020 its reverse (200123000121), we get a palindrome (1410126210141).

The spelling of 1210003210020 in words is "one trillion, two hundred ten billion, three million, two hundred ten thousand, twenty".