1023120212 has 6 divisors (see below), whose sum is σ = 1790460378. Its totient is φ = 511560104.

The previous prime is 1023120211. The next prime is 1023120223. The reversal of 1023120212 is 2120213201.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1021058116 + 2062096 = 31954^2 + 1436^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1023120211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127890023 + ... + 127890030.

It is an arithmetic number, because the mean of its divisors is an integer number (298410063).

Almost surely, 2^1023120212 is an apocalyptic number.

It is an amenable number.

1023120212 is a deficient number, since it is larger than the sum of its proper divisors (767340166).

1023120212 is a wasteful number, since it uses less digits than its factorization.

1023120212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255780057 (or 255780055 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 1023120212 is about 31986.2503585525. The cubic root of 1023120212 is about 1007.6480948575.

Adding to 1023120212 its reverse (2120213201), we get a palindrome (3143333413).

The spelling of 1023120212 in words is "one billion, twenty-three million, one hundred twenty thousand, two hundred twelve".