1234312002020 has 144 divisors (see below), whose sum is σ = 2799848177280. Its totient is φ = 456891950592.

The previous prime is 1234312001959. The next prime is 1234312002023. The reversal of 1234312002020 is 202002134321.

It is a super-2 number, since 2×1234312002020² (a number of 25 digits) contains 22 as substring.

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 = 1234312001983 and 1234312002001.

It is not an unprimeable number, because it can be changed into a prime (1234312002023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 53322569 + ... + 53345711.

It is an arithmetic number, because the mean of its divisors is an integer number (19443390120).

Almost surely, 2^{1234312002020} is an apocalyptic number.

1234312002020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1234312002020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1399924088640).

1234312002020 is an abundant number, since it is smaller than the sum of its proper divisors (1565536175260).

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

1234312002020 is a wasteful number, since it uses less digits than its factorization.

1234312002020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23362 (or 23341 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 1234312002020 its reverse (202002134321), we get a palindrome (1436314136341).

The spelling of 1234312002020 in words is "one trillion, two hundred thirty-four billion, three hundred twelve million, two thousand, twenty".