101145020240 has 40 divisors (see below), whose sum is σ = 256540553568. Its totient is φ = 36780007040.

The previous prime is 101145020231. The next prime is 101145020267. The reversal of 101145020240 is 42020541101.

It is a happy number.

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

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57467882 + ... + 57469641.

Almost surely, 2^101145020240 is an apocalyptic number.

101145020240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101145020240 is an abundant number, since it is smaller than the sum of its proper divisors (155395533328).

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

101145020240 is a wasteful number, since it uses less digits than its factorization.

101145020240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114937547 (or 114937541 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 20.

Adding to 101145020240 its reverse (42020541101), we get a palindrome (143165561341).

The spelling of 101145020240 in words is "one hundred one billion, one hundred forty-five million, twenty thousand, two hundred forty".