1012118310 has 48 divisors (see below), whose sum is σ = 3007439136. Its totient is φ = 231341184.

The previous prime is 1012118309. The next prime is 1012118311. The reversal of 1012118310 is 138112101.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1012118309) and next prime (1012118311).

It is a super-2 number, since 2×1012118310² = 2048766946874512200, which contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012118311) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 802639 + ... + 803898.

It is an arithmetic number, because the mean of its divisors is an integer number (62654982).

Almost surely, 2^1012118310 is an apocalyptic number.

1012118310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1012118310 is an abundant number, since it is smaller than the sum of its proper divisors (1995320826).

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

1012118310 is a wasteful number, since it uses less digits than its factorization.

1012118310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1606557 (or 1606554 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 18.

The square root of 1012118310 is about 31813.8069083221. The cubic root of 1012118310 is about 1004.0232285912.

The spelling of 1012118310 in words is "one billion, twelve million, one hundred eighteen thousand, three hundred ten".