144311134402 has 4 divisors (see below), whose sum is σ = 216466701606. Its totient is φ = 72155567200.

The previous prime is 144311134393. The next prime is 144311134433. The reversal of 144311134402 is 204431113441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 204431113441 = 10771 ⋅18979771.

It can be written as a sum of positive squares in only one way, i.e., 111062894121 + 33248240281 = 333261^2 + 182341^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36077783599 + ... + 36077783602.

Almost surely, 2^144311134402 is an apocalyptic number.

144311134402 is a deficient number, since it is larger than the sum of its proper divisors (72155567204).

144311134402 is an equidigital number, since it uses as much as digits as its factorization.

144311134402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72155567203.

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 144311134402 its reverse (204431113441), we get a palindrome (348742247843).

The spelling of 144311134402 in words is "one hundred forty-four billion, three hundred eleven million, one hundred thirty-four thousand, four hundred two".