1002023120202 has 64 divisors (see below), whose sum is σ = 2275477384320. Its totient is φ = 291614045184.

The previous prime is 1002023120201. The next prime is 1002023120207. The reversal of 1002023120202 is 2020213202001.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1002023120201) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 366478 + ... + 1462310.

It is an arithmetic number, because the mean of its divisors is an integer number (35554334130).

Almost surely, 2^{1002023120202} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1002023120202, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1137738692160).

1002023120202 is an abundant number, since it is smaller than the sum of its proper divisors (1273454264118).

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

1002023120202 is a wasteful number, since it uses less digits than its factorization.

1002023120202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1096487.

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 1002023120202 its reverse (2020213202001), we get a palindrome (3022236322203).

The spelling of 1002023120202 in words is "one trillion, two billion, twenty-three million, one hundred twenty thousand, two hundred two".