10123111420 has 12 divisors (see below), whose sum is σ = 21258534024. Its totient is φ = 4049244560.

The previous prime is 10123111409. The next prime is 10123111451. The reversal of 10123111420 is 2411132101.

It is a junction number, because it is equal to n+sod(n) for n = 10123111394 and 10123111403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 253077766 + ... + 253077805.

It is an arithmetic number, because the mean of its divisors is an integer number (1771544502).

Almost surely, 2^10123111420 is an apocalyptic number.

10123111420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10123111420 is an abundant number, since it is smaller than the sum of its proper divisors (11135422604).

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

10123111420 is a wasteful number, since it uses less digits than its factorization.

10123111420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506155580 (or 506155578 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 10123111420 its reverse (2411132101), we get a palindrome (12534243521).

The spelling of 10123111420 in words is "ten billion, one hundred twenty-three million, one hundred eleven thousand, four hundred twenty".