20311303034 has 16 divisors (see below), whose sum is σ = 33547304736. Its totient is φ = 9146125200.

The previous prime is 20311303009. The next prime is 20311303039. The reversal of 20311303034 is 43030311302.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20311302997 and 20311303015.

It is not an unprimeable number, because it can be changed into a prime (20311303039) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4311857 + ... + 4316564.

It is an arithmetic number, because the mean of its divisors is an integer number (2096706546).

Almost surely, 2^20311303034 is an apocalyptic number.

20311303034 is a deficient number, since it is larger than the sum of its proper divisors (13236001702).

20311303034 is a wasteful number, since it uses less digits than its factorization.

20311303034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8628541.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 20311303034 its reverse (43030311302), we get a palindrome (63341614336).

The spelling of 20311303034 in words is "twenty billion, three hundred eleven million, three hundred three thousand, thirty-four".