1235140120 has 16 divisors (see below), whose sum is σ = 2779065360. Its totient is φ = 494056032.

The previous prime is 1235140111. The next prime is 1235140133. The reversal of 1235140120 is 210415321.

It is a super-2 number, since 2×1235140120² = 3051142232067228800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15439212 + ... + 15439291.

It is an arithmetic number, because the mean of its divisors is an integer number (173691585).

Almost surely, 2^1235140120 is an apocalyptic number.

1235140120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1235140120 is an abundant number, since it is smaller than the sum of its proper divisors (1543925240).

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

1235140120 is a wasteful number, since it uses less digits than its factorization.

1235140120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30878514 (or 30878510 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 1235140120 is about 35144.5603187748. The cubic root of 1235140120 is about 1072.9316986380.

Adding to 1235140120 its reverse (210415321), we get a palindrome (1445555441).

The spelling of 1235140120 in words is "one billion, two hundred thirty-five million, one hundred forty thousand, one hundred twenty".