135211150831 has 2 divisors, whose sum is σ = 135211150832. Its totient is φ = 135211150830.

The previous prime is 135211150813. The next prime is 135211150843. The reversal of 135211150831 is 138051112531.

Together with previous prime (135211150813) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 135211150831 - 2¹¹ = 135211148783 is a prime.

It is a super-2 number, since 2×135211150831² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 135211150793 and 135211150802.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135211150861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67605575415 + 67605575416.

It is an arithmetic number, because the mean of its divisors is an integer number (67605575416).

Almost surely, 2^135211150831 is an apocalyptic number.

135211150831 is a deficient number, since it is larger than the sum of its proper divisors (1).

135211150831 is an equidigital number, since it uses as much as digits as its factorization.

135211150831 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3600, while the sum is 31.

The spelling of 135211150831 in words is "one hundred thirty-five billion, two hundred eleven million, one hundred fifty thousand, eight hundred thirty-one".