30123702 has 48 divisors (see below), whose sum is σ = 78524160. Its totient is φ = 8153136.

The previous prime is 30123701. The next prime is 30123703. The reversal of 30123702 is 20732103.

It is an interprime number because it is at equal distance from previous prime (30123701) and next prime (30123703).

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 (30123701) 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, 3898 + ... + 8685.

It is an arithmetic number, because the mean of its divisors is an integer number (1635920).

Almost surely, 2^30123702 is an apocalyptic number.

30123702 is an abundant number, since it is smaller than the sum of its proper divisors (48400458).

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

30123702 is a wasteful number, since it uses less digits than its factorization.

30123702 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12617 (or 12614 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 18.

The square root of 30123702 is about 5488.5063541915. The cubic root of 30123702 is about 311.1497436814.

Adding to 30123702 its reverse (20732103), we get a palindrome (50855805).

The spelling of 30123702 in words is "thirty million, one hundred twenty-three thousand, seven hundred two".