103120012312220 has 48 divisors (see below), whose sum is σ = 217948401216000. Its totient is φ = 40982549690880.

The previous prime is 103120012312217. The next prime is 103120012312223. The reversal of 103120012312220 is 22213210021301.

It is an interprime number because it is at equal distance from previous prime (103120012312217) and next prime (103120012312223).

It is a super-2 number, since 2×103120012312220² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 103120012312192 and 103120012312201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103120012312223) 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, 13114745 + ... + 19448304.

It is an arithmetic number, because the mean of its divisors is an integer number (4540591692000).

Almost surely, 2^{103120012312220} is an apocalyptic number.

103120012312220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

103120012312220 is an abundant number, since it is smaller than the sum of its proper divisors (114828388903780).

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

103120012312220 is a wasteful number, since it uses less digits than its factorization.

103120012312220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32564078 (or 32564076 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 103120012312220 its reverse (22213210021301), we get a palindrome (125333222333521).

The spelling of 103120012312220 in words is "one hundred three trillion, one hundred twenty billion, twelve million, three hundred twelve thousand, two hundred twenty".