103012140 has 144 divisors (see below), whose sum is σ = 362509056. Its totient is φ = 21394560.

The previous prime is 103012127. The next prime is 103012153. The reversal of 103012140 is 41210301.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (103012127) and next prime (103012153).

It is a super-2 number, since 2×103012140² = 21223001974759200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

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, 49807 + ... + 51833.

It is an arithmetic number, because the mean of its divisors is an integer number (2517424).

Almost surely, 2^103012140 is an apocalyptic number.

103012140 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 103012140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (181254528).

103012140 is an abundant number, since it is smaller than the sum of its proper divisors (259496916).

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

103012140 is a wasteful number, since it uses less digits than its factorization.

103012140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2068 (or 2055 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 103012140 is about 10149.4896423416. The cubic root of 103012140 is about 468.7732304932.

Adding to 103012140 its reverse (41210301), we get a palindrome (144222441).

The spelling of 103012140 in words is "one hundred three million, twelve thousand, one hundred forty".