2231131950 has 72 divisors (see below), whose sum is σ = 6006834288. Its totient is φ = 593725440.

The previous prime is 2231131909. The next prime is 2231131967. The reversal of 2231131950 is 591311322.

It is a super-3 number, since 3×2231131950³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 221422 + ... + 231278.

It is an arithmetic number, because the mean of its divisors is an integer number (83428254).

Almost surely, 2^2231131950 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2231131950, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3003417144).

2231131950 is an abundant number, since it is smaller than the sum of its proper divisors (3775702338).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2231131950 is a wasteful number, since it uses less digits than its factorization.

2231131950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10378 (or 10370 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 27.

The square root of 2231131950 is about 47234.8594789907. The cubic root of 2231131950 is about 1306.6975750041.

The spelling of 2231131950 in words is "two billion, two hundred thirty-one million, one hundred thirty-one thousand, nine hundred fifty".