51134153023 has 4 divisors (see below), whose sum is σ = 51147602568. Its totient is φ = 51120703480.

The previous prime is 51134153003. The next prime is 51134153029. The reversal of 51134153023 is 32035143115.

It is a happy number.

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 2^k-51134153023 is a prime.

It is a super-2 number, since 2×51134153023² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51134152982 and 51134153000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51134153029) 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, 6719068 + ... + 6726673.

It is an arithmetic number, because the mean of its divisors is an integer number (12786900642).

Almost surely, 2^51134153023 is an apocalyptic number.

51134153023 is a deficient number, since it is larger than the sum of its proper divisors (13449545).

51134153023 is a wasteful number, since it uses less digits than its factorization.

51134153023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13449544.

The product of its (nonzero) digits is 5400, while the sum is 28.

Adding to 51134153023 its reverse (32035143115), we get a palindrome (83169296138).

The spelling of 51134153023 in words is "fifty-one billion, one hundred thirty-four million, one hundred fifty-three thousand, twenty-three".