1023402012 has 12 divisors (see below), whose sum is σ = 2387938056. Its totient is φ = 341134000.

The previous prime is 1023402001. The next prime is 1023402059. The reversal of 1023402012 is 2102043201.

It is a tau number, because it is divible by the number of its divisors (12).

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 1023401982 and 1023402000.

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, 42641739 + ... + 42641762.

It is an arithmetic number, because the mean of its divisors is an integer number (198994838).

Almost surely, 2^1023402012 is an apocalyptic number.

1023402012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1023402012 is an abundant number, since it is smaller than the sum of its proper divisors (1364536044).

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

1023402012 is a wasteful number, since it uses less digits than its factorization.

1023402012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85283508 (or 85283506 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 1023402012 is about 31990.6550730053. The cubic root of 1023402012 is about 1007.7405991933.

Adding to 1023402012 its reverse (2102043201), we get a palindrome (3125445213).

The spelling of 1023402012 in words is "one billion, twenty-three million, four hundred two thousand, twelve".