101022142340 has 96 divisors (see below), whose sum is σ = 256551321600. Its totient is φ = 32641246080.

The previous prime is 101022142313. The next prime is 101022142349. The reversal of 101022142340 is 43241220101.

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

It is not an unprimeable number, because it can be changed into a prime (101022142349) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 408641 + ... + 607479.

It is an arithmetic number, because the mean of its divisors is an integer number (2672409600).

Almost surely, 2^101022142340 is an apocalyptic number.

101022142340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 101022142340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (128275660800).

101022142340 is an abundant number, since it is smaller than the sum of its proper divisors (155529179260).

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

101022142340 is a wasteful number, since it uses less digits than its factorization.

101022142340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199065 (or 199063 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 101022142340 its reverse (43241220101), we get a palindrome (144263362441).

The spelling of 101022142340 in words is "one hundred one billion, twenty-two million, one hundred forty-two thousand, three hundred forty".