201030131444 has 24 divisors (see below), whose sum is σ = 360005846760. Its totient is φ = 98187882624.

The previous prime is 201030131387. The next prime is 201030131461. The reversal of 201030131444 is 444131030102.

It can be written as a sum of positive squares in 4 ways, for example, as 127404735844 + 73625395600 = 356938^2 + 271340^2 .

It is a super-2 number, since 2×201030131444² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2021879 + ... + 2118974.

It is an arithmetic number, because the mean of its divisors is an integer number (15000243615).

Almost surely, 2^201030131444 is an apocalyptic number.

It is an amenable number.

201030131444 is a deficient number, since it is larger than the sum of its proper divisors (158975715316).

201030131444 is a wasteful number, since it uses less digits than its factorization.

201030131444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4141139 (or 4141137 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 201030131444 its reverse (444131030102), we get a palindrome (645161161546).

The spelling of 201030131444 in words is "two hundred one billion, thirty million, one hundred thirty-one thousand, four hundred forty-four".