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1031013022211 = 5521186743891
BaseRepresentation
bin11110000000011010010…
…10100011101000000011
310122120020001220012002022
433000031022203220003
5113343003313202321
62105350231112055
7134326315043264
oct17001512435003
93576201805068
101031013022211
11368282a77567
1214799821262b
13762bb4aa163
1437c8922c96b
151bc44294dab
hexf00d2a3a03

1031013022211 has 4 divisors (see below), whose sum is σ = 1031199771624. Its totient is φ = 1030826272800.

The previous prime is 1031013022181. The next prime is 1031013022217. The reversal of 1031013022211 is 1122203101301.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1031013022211 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1031013022211.

It is not an unprimeable number, because it can be changed into a prime (1031013022217) 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, 93366425 + ... + 93377466.

It is an arithmetic number, because the mean of its divisors is an integer number (257799942906).

Almost surely, 21031013022211 is an apocalyptic number.

1031013022211 is a deficient number, since it is larger than the sum of its proper divisors (186749413).

1031013022211 is an equidigital number, since it uses as much as digits as its factorization.

1031013022211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186749412.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 1031013022211 its reverse (1122203101301), we get a palindrome (2153216123512).

The spelling of 1031013022211 in words is "one trillion, thirty-one billion, thirteen million, twenty-two thousand, two hundred eleven".

Divisors: 1 5521 186743891 1031013022211