31423431034 has 16 divisors (see below), whose sum is σ = 47940789600. Its totient is φ = 15443242864.

The previous prime is 31423430959. The next prime is 31423431037. The reversal of 31423431034 is 43013432413.

It is a junction number, because it is equal to n+sod(n) for n = 31423430993 and 31423431011.

It is not an unprimeable number, because it can be changed into a prime (31423431037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1111644 + ... + 1139560.

It is an arithmetic number, because the mean of its divisors is an integer number (2996299350).

Almost surely, 2^31423431034 is an apocalyptic number.

31423431034 is a deficient number, since it is larger than the sum of its proper divisors (16517358566).

31423431034 is a wasteful number, since it uses less digits than its factorization.

31423431034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37517.

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 31423431034 its reverse (43013432413), we get a palindrome (74436863447).

The spelling of 31423431034 in words is "thirty-one billion, four hundred twenty-three million, four hundred thirty-one thousand, thirty-four".