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1011021201101 = 8429119945569
BaseRepresentation
bin11101011011001011000…
…11110011111011001101
310120122121210202110011102
432231211203303323031
5113031032411413401
62052242353032445
7133021022262452
oct16554543637315
93518553673142
101011021201101
1135a85412445a
12143b38b55725
1374453707202
1436d10075829
151b4740e256b
hexeb658f3ecd

1011021201101 has 4 divisors (see below), whose sum is σ = 1011141155100. Its totient is φ = 1010901247104.

The previous prime is 1011021201083. The next prime is 1011021201199.

1011021201101 is nontrivially palindromic in base 10.

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

It can be written as a sum of positive squares in 2 ways, for example, as 70264755625 + 940756445476 = 265075^2 + 969926^2 .

It is a cyclic number.

It is not a de Polignac number, because 1011021201101 - 26 = 1011021201037 is a prime.

It is a super-2 number, since 2×10110212011012 (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 (1011021201901) 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, 59964356 + ... + 59981213.

It is an arithmetic number, because the mean of its divisors is an integer number (252785288775).

Almost surely, 21011021201101 is an apocalyptic number.

It is an amenable number.

1011021201101 is a deficient number, since it is larger than the sum of its proper divisors (119953999).

1011021201101 is an equidigital number, since it uses as much as digits as its factorization.

1011021201101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119953998.

The product of its (nonzero) digits is 4, while the sum is 11.

Multiplying 1011021201101 by its sum of digits (11), we get a palindrome (11121233212111).

The spelling of 1011021201101 in words is "one trillion, eleven billion, twenty-one million, two hundred one thousand, one hundred one".

Divisors: 1 8429 119945569 1011021201101