51101012 has 12 divisors (see below), whose sum is σ = 89882100. Its totient is φ = 25420416.

The previous prime is 51101003. The next prime is 51101023. The reversal of 51101012 is 21010115.

It can be written as a sum of positive squares in 2 ways, for example, as 39513796 + 11587216 = 6286^2 + 3404^2 .

It is a super-2 number, since 2×51101012² = 5222626854848288, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51100984 and 51101002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31637 + ... + 33212.

It is an arithmetic number, because the mean of its divisors is an integer number (7490175).

Almost surely, 2^51101012 is an apocalyptic number.

It is an amenable number.

51101012 is a deficient number, since it is larger than the sum of its proper divisors (38781088).

51101012 is a wasteful number, since it uses less digits than its factorization.

51101012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65050 (or 65048 counting only the distinct ones).

The product of its (nonzero) digits is 10, while the sum is 11.

The square root of 51101012 is about 7148.4971847235. The cubic root of 51101012 is about 371.0876493893.

Adding to 51101012 its reverse (21010115), we get a palindrome (72111127).

The spelling of 51101012 in words is "fifty-one million, one hundred one thousand, twelve".