21030210132002 has 4 divisors (see below), whose sum is σ = 31545315198006. Its totient is φ = 10515105066000.

The previous prime is 21030210131989. The next prime is 21030210132007. The reversal of 21030210132002 is 20023101203012.

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., 14203167526681 + 6827042605321 = 3768709^2 + 2612861^2 .

It is not an unprimeable number, because it can be changed into a prime (21030210132007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5257552532999 + ... + 5257552533002.

Almost surely, 2^{21030210132002} is an apocalyptic number.

21030210132002 is a deficient number, since it is larger than the sum of its proper divisors (10515105066004).

21030210132002 is a wasteful number, since it uses less digits than its factorization.

21030210132002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10515105066003.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 21030210132002 its reverse (20023101203012), we get a palindrome (41053311335014).

The spelling of 21030210132002 in words is "twenty-one trillion, thirty billion, two hundred ten million, one hundred thirty-two thousand, two".