244201212131 has 4 divisors (see below), whose sum is σ = 245267593200. Its totient is φ = 243134831064.

The previous prime is 244201212127. The next prime is 244201212139. The reversal of 244201212131 is 131212102442.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 131212102442 = 2 ⋅65606051221.

It is a cyclic number.

It is not a de Polignac number, because 244201212131 - 2² = 244201212127 is a prime.

It is a super-2 number, since 2×244201212131² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 244201212097 and 244201212106.

It is not an unprimeable number, because it can be changed into a prime (244201212139) 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, 533190191 + ... + 533190648.

It is an arithmetic number, because the mean of its divisors is an integer number (61316898300).

Almost surely, 2^244201212131 is an apocalyptic number.

244201212131 is a deficient number, since it is larger than the sum of its proper divisors (1066381069).

244201212131 is a wasteful number, since it uses less digits than its factorization.

244201212131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1066381068.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 244201212131 its reverse (131212102442), we get a palindrome (375413314573).

The spelling of 244201212131 in words is "two hundred forty-four billion, two hundred one million, two hundred twelve thousand, one hundred thirty-one".