51101001121 has 32 divisors (see below), whose sum is σ = 55338909696. Its totient is φ = 47088912000.

The previous prime is 51101001047. The next prime is 51101001167. The reversal of 51101001121 is 12110010115.

It is a cyclic number.

It is not a de Polignac number, because 51101001121 - 2²¹ = 51098903969 is a prime.

It is a super-2 number, since 2×51101001121² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51101001521) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26462526 + ... + 26464456.

It is an arithmetic number, because the mean of its divisors is an integer number (1729340928).

Almost surely, 2^51101001121 is an apocalyptic number.

It is an amenable number.

51101001121 is a deficient number, since it is larger than the sum of its proper divisors (4237908575).

51101001121 is a wasteful number, since it uses less digits than its factorization.

51101001121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2493.

The product of its (nonzero) digits is 10, while the sum is 13.

Adding to 51101001121 its reverse (12110010115), we get a palindrome (63211011236).

The spelling of 51101001121 in words is "fifty-one billion, one hundred one million, one thousand, one hundred twenty-one".