20311120031002 has 8 divisors (see below), whose sum is σ = 30466853464212. Its totient is φ = 10155502209600.

The previous prime is 20311120030979. The next prime is 20311120031051. The reversal of 20311120031002 is 20013002111302.

It can be written as a sum of positive squares in 2 ways, for example, as 17642696503041 + 2668423527961 = 4200321^2 + 1633531^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×20311120031002² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 28462399 + ... + 29167282.

Almost surely, 2^{20311120031002} is an apocalyptic number.

20311120031002 is a deficient number, since it is larger than the sum of its proper divisors (10155733433210).

20311120031002 is a wasteful number, since it uses less digits than its factorization.

20311120031002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57805904.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 20311120031002 its reverse (20013002111302), we get a palindrome (40324122142304).

The spelling of 20311120031002 in words is "twenty trillion, three hundred eleven billion, one hundred twenty million, thirty-one thousand, two".