40432021123 has 8 divisors (see below), whose sum is σ = 44554785968. Its totient is φ = 36453914784.

The previous prime is 40432021121. The next prime is 40432021151. The reversal of 40432021123 is 32112023404.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40432021123 - 2¹ = 40432021121 is a prime.

It is a super-2 number, since 2×40432021123² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40432021094 and 40432021103.

It is not an unprimeable number, because it can be changed into a prime (40432021121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36164040 + ... + 36165157.

It is an arithmetic number, because the mean of its divisors is an integer number (5569348246).

Almost surely, 2^40432021123 is an apocalyptic number.

40432021123 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

40432021123 is a deficient number, since it is larger than the sum of its proper divisors (4122764845).

40432021123 is a wasteful number, since it uses less digits than its factorization.

40432021123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72329253.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 40432021123 its reverse (32112023404), we get a palindrome (72544044527).

The spelling of 40432021123 in words is "forty billion, four hundred thirty-two million, twenty-one thousand, one hundred twenty-three".