135101231631 has 48 divisors (see below), whose sum is σ = 204789731328. Its totient is φ = 85748572800.

The previous prime is 135101231627. The next prime is 135101231651. The reversal of 135101231631 is 136132101531.

It is a happy number.

135101231631 is a `hidden beast` number, since 1 + 3 + 5 + 1 + 0 + 1 + 23 + 1 + 631 = 666.

It is not a de Polignac number, because 135101231631 - 2² = 135101231627 is a prime.

It is a super-2 number, since 2×135101231631² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 135101231595 and 135101231604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135101231651) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2619826 + ... + 2670896.

It is an arithmetic number, because the mean of its divisors is an integer number (4266452736).

Almost surely, 2^135101231631 is an apocalyptic number.

135101231631 is a deficient number, since it is larger than the sum of its proper divisors (69688499697).

135101231631 is a wasteful number, since it uses less digits than its factorization.

135101231631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51292 (or 51289 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 27.

The spelling of 135101231631 in words is "one hundred thirty-five billion, one hundred one million, two hundred thirty-one thousand, six hundred thirty-one".