123111302030 has 32 divisors (see below), whose sum is σ = 223041069504. Its totient is φ = 48925368576.

The previous prime is 123111302029. The next prime is 123111302053. The reversal of 123111302030 is 30203111321.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 918242 + ... + 1043738.

It is an arithmetic number, because the mean of its divisors is an integer number (6970033422).

Almost surely, 2^123111302030 is an apocalyptic number.

123111302030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123111302030 is a deficient number, since it is larger than the sum of its proper divisors (99929767474).

123111302030 is a wasteful number, since it uses less digits than its factorization.

123111302030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126140.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 123111302030 its reverse (30203111321), we get a palindrome (153314413351).

The spelling of 123111302030 in words is "one hundred twenty-three billion, one hundred eleven million, three hundred two thousand, thirty".