42400031401023 has 4 divisors (see below), whose sum is σ = 56533375201368. Its totient is φ = 28266687600680.

The previous prime is 42400031400971. The next prime is 42400031401027. The reversal of 42400031401023 is 32010413000424.

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

It is a cyclic number.

It is not a de Polignac number, because 42400031401023 - 2³³ = 42391441466431 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42400031400984 and 42400031401002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42400031401027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7066671900168 + ... + 7066671900173.

It is an arithmetic number, because the mean of its divisors is an integer number (14133343800342).

Almost surely, 2^{42400031401023} is an apocalyptic number.

42400031401023 is a deficient number, since it is larger than the sum of its proper divisors (14133343800345).

42400031401023 is a wasteful number, since it uses less digits than its factorization.

42400031401023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14133343800344.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 42400031401023 its reverse (32010413000424), we get a palindrome (74410444401447).

The spelling of 42400031401023 in words is "forty-two trillion, four hundred billion, thirty-one million, four hundred one thousand, twenty-three".