101321121002 has 4 divisors (see below), whose sum is σ = 151981681506. Its totient is φ = 50660560500.

The previous prime is 101321120987. The next prime is 101321121007. The reversal of 101321121002 is 200121123101.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 54075316681 + 47245804321 = 232541^2 + 217361^2 .

It is a super-2 number, since 2×101321121002² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (101321121007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25330280249 + ... + 25330280252.

Almost surely, 2^101321121002 is an apocalyptic number.

101321121002 is a deficient number, since it is larger than the sum of its proper divisors (50660560504).

101321121002 is an equidigital number, since it uses as much as digits as its factorization.

101321121002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50660560503.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 101321121002 its reverse (200121123101), we get a palindrome (301442244103).

The spelling of 101321121002 in words is "one hundred one billion, three hundred twenty-one million, one hundred twenty-one thousand, two".