10121001011 has 8 divisors (see below), whose sum is σ = 11050534848. Its totient is φ = 9193041000.

The previous prime is 10121001001. The next prime is 10121001013. The reversal of 10121001011 is 11010012101.

It is a happy number.

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

It is not a de Polignac number, because 10121001011 - 2⁶ = 10121000947 is a prime.

It is a super-2 number, since 2×10121001011² (a number of 21 digits) contains 22 as substring.

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 10121001011.

It is not an unprimeable number, because it can be changed into a prime (10121001013) 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, 379985 + ... + 405746.

It is an arithmetic number, because the mean of its divisors is an integer number (1381316856).

Almost surely, 2^10121001011 is an apocalyptic number.

10121001011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

10121001011 is a deficient number, since it is larger than the sum of its proper divisors (929533837).

10121001011 is a wasteful number, since it uses less digits than its factorization.

10121001011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 786913.

The product of its (nonzero) digits is 2, while the sum is 8.

Adding to 10121001011 its reverse (11010012101), we get a palindrome (21131013112).

The spelling of 10121001011 in words is "ten billion, one hundred twenty-one million, one thousand, eleven".