2131123202 has 8 divisors (see below), whose sum is σ = 3442583676. Its totient is φ = 983595312.

The previous prime is 2131123199. The next prime is 2131123207. The reversal of 2131123202 is 2023211312.

It can be written as a sum of positive squares in 2 ways, for example, as 2079268801 + 51854401 = 45599^2 + 7201^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×2131123202² = 9083372204205465608, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2131123207) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40983113 + ... + 40983164.

Almost surely, 2^2131123202 is an apocalyptic number.

2131123202 is a deficient number, since it is larger than the sum of its proper divisors (1311460474).

2131123202 is a wasteful number, since it uses less digits than its factorization.

2131123202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81966292.

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

The square root of 2131123202 is about 46164.0899617874. The cubic root of 2131123202 is about 1286.8744720456.

Adding to 2131123202 its reverse (2023211312), we get a palindrome (4154334514).

The spelling of 2131123202 in words is "two billion, one hundred thirty-one million, one hundred twenty-three thousand, two hundred two".