400142123134 has 32 divisors (see below), whose sum is σ = 668801629440. Its totient is φ = 178278240000.

The previous prime is 400142123089. The next prime is 400142123141. The reversal of 400142123134 is 431321241004.

It is a super-2 number, since 2×400142123134² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 400142123099 and 400142123108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4076634 + ... + 4173634.

It is an arithmetic number, because the mean of its divisors is an integer number (20900050920).

Almost surely, 2^400142123134 is an apocalyptic number.

400142123134 is a deficient number, since it is larger than the sum of its proper divisors (268659506306).

400142123134 is a wasteful number, since it uses less digits than its factorization.

400142123134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102516.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 400142123134 its reverse (431321241004), we get a palindrome (831463364138).

The spelling of 400142123134 in words is "four hundred billion, one hundred forty-two million, one hundred twenty-three thousand, one hundred thirty-four".