1020240123210 has 512 divisors, whose sum is σ = 3588710400000. Its totient is φ = 199815517440.

The previous prime is 1020240123209. The next prime is 1020240123211. The reversal of 1020240123210 is 123210420201.

It is a happy number.

1020240123210 is a `hidden beast` number, since 1 + 0 + 20 + 2 + 401 + 232 + 10 = 666.

1020240123210 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (1020240123209) and next prime (1020240123211).

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1020240123211) by changing a digit.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 78600501 + ... + 78613479.

It is an arithmetic number, because the mean of its divisors is an integer number (7009200000).

Almost surely, 2^{1020240123210} is an apocalyptic number.

1020240123210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1020240123210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1794355200000).

1020240123210 is an abundant number, since it is smaller than the sum of its proper divisors (2568470276790).

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

1020240123210 is a wasteful number, since it uses less digits than its factorization.

1020240123210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13231 (or 13225 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 1020240123210 its reverse (123210420201), we get a palindrome (1143450543411).

The spelling of 1020240123210 in words is "one trillion, twenty billion, two hundred forty million, one hundred twenty-three thousand, two hundred ten".