401344311154 has 4 divisors (see below), whose sum is σ = 602016466734. Its totient is φ = 200672155576.

The previous prime is 401344311139. The next prime is 401344311187. The reversal of 401344311154 is 451113443104.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 393727385529 + 7616925625 = 627477^2 + 87275^2 .

It is a super-2 number, since 2×401344311154² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100336077787 + ... + 100336077790.

Almost surely, 2^401344311154 is an apocalyptic number.

401344311154 is a deficient number, since it is larger than the sum of its proper divisors (200672155580).

401344311154 is a wasteful number, since it uses less digits than its factorization.

401344311154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200672155579.

The product of its (nonzero) digits is 11520, while the sum is 31.

Adding to 401344311154 its reverse (451113443104), we get a palindrome (852457754258).

The spelling of 401344311154 in words is "four hundred one billion, three hundred forty-four million, three hundred eleven thousand, one hundred fifty-four".