31403123411 has 64 divisors (see below), whose sum is σ = 38242713600. Its totient is φ = 25466918400.

The previous prime is 31403123383. The next prime is 31403123419. The reversal of 31403123411 is 11432130413.

It is not a de Polignac number, because 31403123411 - 2¹⁴ = 31403107027 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31403123419) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 43195130 + ... + 43195856.

It is an arithmetic number, because the mean of its divisors is an integer number (597542400).

Almost surely, 2^31403123411 is an apocalyptic number.

31403123411 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

31403123411 is a deficient number, since it is larger than the sum of its proper divisors (6839590189).

31403123411 is a wasteful number, since it uses less digits than its factorization.

31403123411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 960.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 31403123411 its reverse (11432130413), we get a palindrome (42835253824).

The spelling of 31403123411 in words is "thirty-one billion, four hundred three million, one hundred twenty-three thousand, four hundred eleven".