103121123312030 has 32 divisors (see below), whose sum is σ = 188661859287840. Its totient is φ = 40572047617920.

The previous prime is 103121123311961. The next prime is 103121123312033. The reversal of 103121123312030 is 30213321121301.

It is a junction number, because it is equal to n+sod(n) for n = 103121123311987 and 103121123312005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103121123312033) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 237950081 + ... + 238383059.

It is an arithmetic number, because the mean of its divisors is an integer number (5895683102745).

Almost surely, 2^{103121123312030} is an apocalyptic number.

103121123312030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

103121123312030 is a deficient number, since it is larger than the sum of its proper divisors (85540735975810).

103121123312030 is a wasteful number, since it uses less digits than its factorization.

103121123312030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 823484.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 103121123312030 its reverse (30213321121301), we get a palindrome (133334444433331).

The spelling of 103121123312030 in words is "one hundred three trillion, one hundred twenty-one billion, one hundred twenty-three million, three hundred twelve thousand, thirty".