101235346640 has 40 divisors (see below), whose sum is σ = 239813175528. Its totient is φ = 39730096640.

The previous prime is 101235346621. The next prime is 101235346643. The reversal of 101235346640 is 46643532101.

It can be written as a sum of positive squares in 4 ways, for example, as 4603893904 + 96631452736 = 67852^2 + 310856^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 101235346640.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101235346643) 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, 11933891 + ... + 11942370.

Almost surely, 2^101235346640 is an apocalyptic number.

101235346640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101235346640 is an abundant number, since it is smaller than the sum of its proper divisors (138577828888).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

101235346640 is a wasteful number, since it uses less digits than its factorization.

101235346640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23876327 (or 23876321 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 35.

Adding to 101235346640 its reverse (46643532101), we get a palindrome (147878878741).

The spelling of 101235346640 in words is "one hundred one billion, two hundred thirty-five million, three hundred forty-six thousand, six hundred forty".