10142031420 has 144 divisors (see below), whose sum is σ = 31570576128. Its totient is φ = 2633886720.

The previous prime is 10142031373. The next prime is 10142031433. The reversal of 10142031420 is 2413024101.

10142031420 is a `hidden beast` number, since 101 + 420 + 3 + 142 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 10142031393 and 10142031402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6471477 + ... + 6473043.

It is an arithmetic number, because the mean of its divisors is an integer number (219240112).

Almost surely, 2^10142031420 is an apocalyptic number.

10142031420 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 10142031420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15785288064).

10142031420 is an abundant number, since it is smaller than the sum of its proper divisors (21428544708).

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

10142031420 is a wasteful number, since it uses less digits than its factorization.

10142031420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2500 (or 2495 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 10142031420 its reverse (2413024101), we get a palindrome (12555055521).

The spelling of 10142031420 in words is "ten billion, one hundred forty-two million, thirty-one thousand, four hundred twenty".