1002121321302 has 48 divisors (see below), whose sum is σ = 2210893135152. Its totient is φ = 327963504960.

The previous prime is 1002121321277. The next prime is 1002121321307. The reversal of 1002121321302 is 2031231212001.

1002121321302 is a `hidden beast` number, since 1 + 0 + 0 + 21 + 21 + 321 + 302 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002121321307) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 233653 + ... + 1434864.

It is an arithmetic number, because the mean of its divisors is an integer number (46060273649).

Almost surely, 2^{1002121321302} is an apocalyptic number.

1002121321302 is an abundant number, since it is smaller than the sum of its proper divisors (1208771813850).

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

1002121321302 is a wasteful number, since it uses less digits than its factorization.

1002121321302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1669133 (or 1669130 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 1002121321302 its reverse (2031231212001), we get a palindrome (3033352533303).

The spelling of 1002121321302 in words is "one trillion, two billion, one hundred twenty-one million, three hundred twenty-one thousand, three hundred two".