1020123347 has 8 divisors (see below), whose sum is σ = 1064799744. Its totient is φ = 975473928.

The previous prime is 1020123329. The next prime is 1020123361. The reversal of 1020123347 is 7433210201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1020123347 - 2¹² = 1020119251 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1020123317) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 128228 + ... + 135950.

It is an arithmetic number, because the mean of its divisors is an integer number (133099968).

Almost surely, 2^1020123347 is an apocalyptic number.

1020123347 is a deficient number, since it is larger than the sum of its proper divisors (44676397).

1020123347 is an equidigital number, since it uses as much as digits as its factorization.

1020123347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13489.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 1020123347 is about 31939.3698591566. The cubic root of 1020123347 is about 1006.6632843597.

Adding to 1020123347 its reverse (7433210201), we get a palindrome (8453333548).

The spelling of 1020123347 in words is "one billion, twenty million, one hundred twenty-three thousand, three hundred forty-seven".