201130121002 has 4 divisors (see below), whose sum is σ = 301695181506. Its totient is φ = 100565060500.

The previous prime is 201130120907. The next prime is 201130121041. The reversal of 201130121002 is 200121031102.

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., 194409564561 + 6720556441 = 440919^2 + 81979^2 .

It is a super-2 number, since 2×201130121002² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50282530249 + ... + 50282530252.

Almost surely, 2^201130121002 is an apocalyptic number.

201130121002 is a deficient number, since it is larger than the sum of its proper divisors (100565060504).

201130121002 is a wasteful number, since it uses less digits than its factorization.

201130121002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100565060503.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 201130121002 its reverse (200121031102), we get a palindrome (401251152104).

The spelling of 201130121002 in words is "two hundred one billion, one hundred thirty million, one hundred twenty-one thousand, two".