31040141433242 has 4 divisors (see below), whose sum is σ = 46560212149866. Its totient is φ = 15520070716620.

The previous prime is 31040141433241. The next prime is 31040141433253. The reversal of 31040141433242 is 24233414104013.

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

It can be written as a sum of positive squares in only one way, i.e., 29795888190721 + 1244253242521 = 5458561^2 + 1115461^2 .

It is a junction number, because it is equal to n+sod(n) for n = 31040141433199 and 31040141433208.

It is not an unprimeable number, because it can be changed into a prime (31040141433241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7760035358309 + ... + 7760035358312.

Almost surely, 2^{31040141433242} is an apocalyptic number.

31040141433242 is a deficient number, since it is larger than the sum of its proper divisors (15520070716624).

31040141433242 is a wasteful number, since it uses less digits than its factorization.

31040141433242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15520070716623.

The product of its (nonzero) digits is 27648, while the sum is 32.

Adding to 31040141433242 its reverse (24233414104013), we get a palindrome (55273555537255).

The spelling of 31040141433242 in words is "thirty-one trillion, forty billion, one hundred forty-one million, four hundred thirty-three thousand, two hundred forty-two".