31154350426 has 32 divisors (see below), whose sum is σ = 50831032320. Its totient is φ = 14266335600.

The previous prime is 31154350417. The next prime is 31154350429. The reversal of 31154350426 is 62405345113.

It is a junction number, because it is equal to n+sod(n) for n = 31154350391 and 31154350400.

It is not an unprimeable number, because it can be changed into a prime (31154350429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1154055 + ... + 1180741.

It is an arithmetic number, because the mean of its divisors is an integer number (1588469760).

Almost surely, 2^31154350426 is an apocalyptic number.

31154350426 is a deficient number, since it is larger than the sum of its proper divisors (19676681894).

31154350426 is a wasteful number, since it uses less digits than its factorization.

31154350426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27730.

The product of its (nonzero) digits is 43200, while the sum is 34.

Adding to 31154350426 its reverse (62405345113), we get a palindrome (93559695539).

The spelling of 31154350426 in words is "thirty-one billion, one hundred fifty-four million, three hundred fifty thousand, four hundred twenty-six".