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121133011 = 351134501
BaseRepresentation
bin1110011100001…
…01011111010011
322102221012020211
413032011133103
5222002224021
620004144551
73000420316
oct716053723
9272835224
10121133011
116241602a
1234698157
131c13284c
141213297d
15a97b3e1
hex73857d3

121133011 has 4 divisors (see below), whose sum is σ = 121171024. Its totient is φ = 121095000.

The previous prime is 121132997. The next prime is 121133017. The reversal of 121133011 is 110331121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 110331121 = 591870019.

It is a cyclic number.

It is not a de Polignac number, because 121133011 - 29 = 121132499 is a prime.

It is a super-2 number, since 2×1211330112 = 29346412707852242, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121132982 and 121133000.

It is not an unprimeable number, because it can be changed into a prime (121133017) 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, 13740 + ... + 20761.

It is an arithmetic number, because the mean of its divisors is an integer number (30292756).

Almost surely, 2121133011 is an apocalyptic number.

121133011 is a deficient number, since it is larger than the sum of its proper divisors (38013).

121133011 is an equidigital number, since it uses as much as digits as its factorization.

121133011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38012.

The product of its (nonzero) digits is 18, while the sum is 13.

The square root of 121133011 is about 11006.0442939323. The cubic root of 121133011 is about 494.7899132288.

Adding to 121133011 its reverse (110331121), we get a palindrome (231464132).

The spelling of 121133011 in words is "one hundred twenty-one million, one hundred thirty-three thousand, eleven".

Divisors: 1 3511 34501 121133011