20031153345 has 48 divisors (see below), whose sum is σ = 39827354112. Its totient is φ = 9123269760.

The previous prime is 20031153301. The next prime is 20031153403. The reversal of 20031153345 is 54335113002.

20031153345 is a `hidden beast` number, since 2 + 0 + 0 + 311 + 5 + 3 + 345 = 666.

It is not a de Polignac number, because 20031153345 - 2⁶ = 20031153281 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 31962 + ... + 202691.

It is an arithmetic number, because the mean of its divisors is an integer number (829736544).

Almost surely, 2^20031153345 is an apocalyptic number.

It is an amenable number.

20031153345 is a deficient number, since it is larger than the sum of its proper divisors (19796200767).

20031153345 is a wasteful number, since it uses less digits than its factorization.

20031153345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234942 (or 234939 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

Adding to 20031153345 its reverse (54335113002), we get a palindrome (74366266347).

The spelling of 20031153345 in words is "twenty billion, thirty-one million, one hundred fifty-three thousand, three hundred forty-five".