1142101420 has 24 divisors (see below), whose sum is σ = 2428776000. Its totient is φ = 451057152.

The previous prime is 1142101417. The next prime is 1142101439. The reversal of 1142101420 is 241012411.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1142101394 and 1142101403.

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, 359845 + ... + 363004.

It is an arithmetic number, because the mean of its divisors is an integer number (101199000).

Almost surely, 2^1142101420 is an apocalyptic number.

1142101420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1142101420 is an abundant number, since it is smaller than the sum of its proper divisors (1286674580).

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

1142101420 is a wasteful number, since it uses less digits than its factorization.

1142101420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 722937 (or 722935 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 1142101420 is about 33794.9910489706. The cubic root of 1142101420 is about 1045.2854145876.

Adding to 1142101420 its reverse (241012411), we get a palindrome (1383113831).

The spelling of 1142101420 in words is "one billion, one hundred forty-two million, one hundred one thousand, four hundred twenty".