51201336031 has 8 divisors (see below), whose sum is σ = 53022947328. Its totient is φ = 49390347000.

The previous prime is 51201336029. The next prime is 51201336071. The reversal of 51201336031 is 13063310215.

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

It is not a de Polignac number, because 51201336031 - 2¹ = 51201336029 is a prime.

It is a super-2 number, since 2×51201336031² (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 = 51201335987 and 51201336005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51201336071) 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, 2645755 + ... + 2665036.

It is an arithmetic number, because the mean of its divisors is an integer number (6627868416).

Almost surely, 2^51201336031 is an apocalyptic number.

51201336031 is a deficient number, since it is larger than the sum of its proper divisors (1821611297).

51201336031 is a wasteful number, since it uses less digits than its factorization.

51201336031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5311133.

The product of its (nonzero) digits is 1620, while the sum is 25.

Adding to 51201336031 its reverse (13063310215), we get a palindrome (64264646246).

The spelling of 51201336031 in words is "fifty-one billion, two hundred one million, three hundred thirty-six thousand, thirty-one".