40042101225031 has 4 divisors (see below), whose sum is σ = 40069029337632. Its totient is φ = 40015173112432.

The previous prime is 40042101225029. The next prime is 40042101225037. The reversal of 40042101225031 is 13052210124004.

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 40042101225031 - 2¹ = 40042101225029 is a prime.

It is a super-2 number, since 2×40042101225031² (a number of 28 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 = 40042101224987 and 40042101225005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40042101225037) 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, 13464054070 + ... + 13464057043.

It is an arithmetic number, because the mean of its divisors is an integer number (10017257334408).

Almost surely, 2^{40042101225031} is an apocalyptic number.

40042101225031 is a deficient number, since it is larger than the sum of its proper divisors (26928112601).

40042101225031 is a wasteful number, since it uses less digits than its factorization.

40042101225031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26928112600.

The product of its (nonzero) digits is 1920, while the sum is 25.

Adding to 40042101225031 its reverse (13052210124004), we get a palindrome (53094311349035).

The spelling of 40042101225031 in words is "forty trillion, forty-two billion, one hundred one million, two hundred twenty-five thousand, thirty-one".