401232443431142 has 32 divisors (see below), whose sum is σ = 638727052908672. Its totient is φ = 188378124315264.

The previous prime is 401232443431111. The next prime is 401232443431147. The reversal of 401232443431142 is 241134344232104.

It is a junction number, because it is equal to n+sod(n) for n = 401232443431096 and 401232443431105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401232443431147) 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, 261962873 + ... + 263490059.

It is an arithmetic number, because the mean of its divisors is an integer number (19960220403396).

Almost surely, 2^{401232443431142} is an apocalyptic number.

401232443431142 is a deficient number, since it is larger than the sum of its proper divisors (237494609477530).

401232443431142 is a wasteful number, since it uses less digits than its factorization.

401232443431142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1545092.

The product of its (nonzero) digits is 221184, while the sum is 38.

Adding to 401232443431142 its reverse (241134344232104), we get a palindrome (642366787663246).

The spelling of 401232443431142 in words is "four hundred one trillion, two hundred thirty-two billion, four hundred forty-three million, four hundred thirty-one thousand, one hundred forty-two".