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1020331303031 = 31307107211443
BaseRepresentation
bin11101101100100000111…
…11000010000001110111
310121112122122100122001102
432312100133002001313
5113204114303144111
62100422252520315
7133500521655665
oct16662037020167
93545578318042
101020331303031
113637a1469877
121458b6a8009b
13752a84b1371
143755472dc35
151b81b62613b
hexed907c2077

1020331303031 has 8 divisors (see below), whose sum is σ = 1056675992064. Its totient is φ = 984201037560.

The previous prime is 1020331303003. The next prime is 1020331303039. The reversal of 1020331303031 is 1303031330201.

1020331303031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 1020331303031 - 210 = 1020331302007 is a prime.

It is a super-2 number, since 2×10203313030312 (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1020331302994 and 1020331303012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020331303039) 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, 53596205 + ... + 53615238.

It is an arithmetic number, because the mean of its divisors is an integer number (132084499008).

Almost surely, 21020331303031 is an apocalyptic number.

1020331303031 is a deficient number, since it is larger than the sum of its proper divisors (36344689033).

1020331303031 is a wasteful number, since it uses less digits than its factorization.

1020331303031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107211781.

The product of its (nonzero) digits is 486, while the sum is 20.

Adding to 1020331303031 its reverse (1303031330201), we get a palindrome (2323362633232).

The spelling of 1020331303031 in words is "one trillion, twenty billion, three hundred thirty-one million, three hundred three thousand, thirty-one".

Divisors: 1 31 307 9517 107211443 3323554733 32913913001 1020331303031