201431440442002 has 16 divisors (see below), whose sum is σ = 303584682031992. Its totient is φ = 100237641687040.

The previous prime is 201431440441993. The next prime is 201431440442021. The reversal of 201431440442002 is 200244044134102.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 134532602194761 + 66898838247241 = 11598819^2 + 8179171^2 .

It is a super-2 number, since 2×201431440442002² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 273445663 + ... + 274181314.

Almost surely, 2^{201431440442002} is an apocalyptic number.

201431440442002 is a deficient number, since it is larger than the sum of its proper divisors (102153241589990).

201431440442002 is a wasteful number, since it uses less digits than its factorization.

201431440442002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 547627853.

The product of its (nonzero) digits is 24576, while the sum is 31.

Adding to 201431440442002 its reverse (200244044134102), we get a palindrome (401675484576104).

The spelling of 201431440442002 in words is "two hundred one trillion, four hundred thirty-one billion, four hundred forty million, four hundred forty-two thousand, two".