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1020332011031 = 4021253750811
BaseRepresentation
bin11101101100100001000…
…01101110111000010111
310121112122200200121020122
432312100201232320113
5113204114443323111
62100422320022155
7133500530665064
oct16662041567027
93545580617218
101020332011031
113637a19027a3
121458b716195b
13752a869b6b8
1437554875c6b
151b81b715cdb
hexed9086ee17

1020332011031 has 4 divisors (see below), whose sum is σ = 1020585765864. Its totient is φ = 1020078256200.

The previous prime is 1020332010989. The next prime is 1020332011033. The reversal of 1020332011031 is 1301102330201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1020332011031 - 230 = 1019258269207 is a prime.

It is a super-2 number, since 2×10203320110312 (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020332011033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 126871385 + ... + 126879426.

It is an arithmetic number, because the mean of its divisors is an integer number (255146441466).

Almost surely, 21020332011031 is an apocalyptic number.

1020332011031 is a deficient number, since it is larger than the sum of its proper divisors (253754833).

1020332011031 is an equidigital number, since it uses as much as digits as its factorization.

1020332011031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253754832.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 1020332011031 its reverse (1301102330201), we get a palindrome (2321434341232).

The spelling of 1020332011031 in words is "one trillion, twenty billion, three hundred thirty-two million, eleven thousand, thirty-one".

Divisors: 1 4021 253750811 1020332011031