20031121202 has 4 divisors (see below), whose sum is σ = 30046681806. Its totient is φ = 10015560600.

The previous prime is 20031121189. The next prime is 20031121207. The reversal of 20031121202 is 20212113002.

It is a happy number.

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., 19928686561 + 102434641 = 141169^2 + 10121^2 .

It is not an unprimeable number, because it can be changed into a prime (20031121207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5007780299 + ... + 5007780302.

Almost surely, 2^20031121202 is an apocalyptic number.

20031121202 is a deficient number, since it is larger than the sum of its proper divisors (10015560604).

20031121202 is a wasteful number, since it uses less digits than its factorization.

20031121202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10015560603.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 20031121202 its reverse (20212113002), we get a palindrome (40243234204).

The spelling of 20031121202 in words is "twenty billion, thirty-one million, one hundred twenty-one thousand, two hundred two".