1213051023 has 6 divisors (see below), whose sum is σ = 1752184824. Its totient is φ = 808700676.

The previous prime is 1213050983. The next prime is 1213051039. The reversal of 1213051023 is 3201503121.

1213051023 is a `hidden beast` number, since 1 + 2 + 130 + 510 + 23 = 666.

It is not a de Polignac number, because 1213051023 - 2¹² = 1213046927 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1213050987 and 1213051005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213041023) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 67391715 + ... + 67391732.

It is an arithmetic number, because the mean of its divisors is an integer number (292030804).

Almost surely, 2^1213051023 is an apocalyptic number.

1213051023 is a deficient number, since it is larger than the sum of its proper divisors (539133801).

1213051023 is a wasteful number, since it uses less digits than its factorization.

1213051023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134783453 (or 134783450 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 1213051023 is about 34828.8820234012. The cubic root of 1213051023 is about 1066.4971260596.

Adding to 1213051023 its reverse (3201503121), we get a palindrome (4414554144).

The spelling of 1213051023 in words is "one billion, two hundred thirteen million, fifty-one thousand, twenty-three".