101023450040 has 32 divisors (see below), whose sum is σ = 228245949360. Its totient is φ = 40241702400.

The previous prime is 101023450019. The next prime is 101023450049. The reversal of 101023450040 is 40054320101.

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

It is a junction number, because it is equal to n+sod(n) for n = 101023449994 and 101023450021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101023450049) 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, 5230166 + ... + 5249445.

Almost surely, 2^101023450040 is an apocalyptic number.

101023450040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101023450040 is an abundant number, since it is smaller than the sum of its proper divisors (127222499320).

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

101023450040 is a wasteful number, since it uses less digits than its factorization.

101023450040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10479863 (or 10479859 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

Adding to 101023450040 its reverse (40054320101), we get a palindrome (141077770141).

The spelling of 101023450040 in words is "one hundred one billion, twenty-three million, four hundred fifty thousand, forty".