2131443773250 has 256 divisors, whose sum is σ = 6104020156416. Its totient is φ = 490607520000.

The previous prime is 2131443773243. The next prime is 2131443773257. The reversal of 2131443773250 is 523773441312.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2131443773243) and next prime (2131443773257).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2131443773257) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 13476127 + ... + 13633373.

It is an arithmetic number, because the mean of its divisors is an integer number (23843828736).

Almost surely, 2^{2131443773250} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2131443773250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3052010078208).

2131443773250 is an abundant number, since it is smaller than the sum of its proper divisors (3972576383166).

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

2131443773250 is a wasteful number, since it uses less digits than its factorization.

2131443773250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157362 (or 157352 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 42.

The spelling of 2131443773250 in words is "two trillion, one hundred thirty-one billion, four hundred forty-three million, seven hundred seventy-three thousand, two hundred fifty".