31403241445 has 4 divisors (see below), whose sum is σ = 37683889740. Its totient is φ = 25122593152.

The previous prime is 31403241433. The next prime is 31403241461. The reversal of 31403241445 is 54414230413.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54414230413 = 599 ⋅90841787.

It can be written as a sum of positive squares in 2 ways, for example, as 10976543361 + 20426698084 = 104769^2 + 142922^2 .

It is a cyclic number.

It is not a de Polignac number, because 31403241445 - 2¹¹ = 31403239397 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3140324140 + ... + 3140324149.

It is an arithmetic number, because the mean of its divisors is an integer number (9420972435).

Almost surely, 2^31403241445 is an apocalyptic number.

It is an amenable number.

31403241445 is a deficient number, since it is larger than the sum of its proper divisors (6280648295).

31403241445 is an equidigital number, since it uses as much as digits as its factorization.

31403241445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6280648294.

The product of its (nonzero) digits is 23040, while the sum is 31.

Adding to 31403241445 its reverse (54414230413), we get a palindrome (85817471858).

The spelling of 31403241445 in words is "thirty-one billion, four hundred three million, two hundred forty-one thousand, four hundred forty-five".