401311423202140 has 48 divisors (see below), whose sum is σ = 919618430298624. Its totient is φ = 145891673825600.

The previous prime is 401311423202083. The next prime is 401311423202147. The reversal of 401311423202140 is 41202324113104.

It is a happy number.

It is a super-2 number, since 2×401311423202140² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 401311423202099 and 401311423202108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401311423202147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 247645504 + ... + 249260743.

It is an arithmetic number, because the mean of its divisors is an integer number (19158717297888).

Almost surely, 2^{401311423202140} is an apocalyptic number.

It is an amenable number.

401311423202140 is an abundant number, since it is smaller than the sum of its proper divisors (518307007096484).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

401311423202140 is a wasteful number, since it uses less digits than its factorization.

401311423202140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 496909938 (or 496909936 counting only the distinct ones).

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

Adding to 401311423202140 its reverse (41202324113104), we get a palindrome (442513747315244).

The spelling of 401311423202140 in words is "four hundred one trillion, three hundred eleven billion, four hundred twenty-three million, two hundred two thousand, one hundred forty".