1212553523 has 2 divisors, whose sum is σ = 1212553524. Its totient is φ = 1212553522.

The previous prime is 1212553493. The next prime is 1212553553. The reversal of 1212553523 is 3253552121.

It is a balanced prime because it is at equal distance from previous prime (1212553493) and next prime (1212553553).

It is a cyclic number.

It is not a de Polignac number, because 1212553523 - 2²⁸ = 944118067 is a prime.

It is a super-2 number, since 2×1212553523² = 2940572092279423058, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1212553553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606276761 + 606276762.

It is an arithmetic number, because the mean of its divisors is an integer number (606276762).

Almost surely, 2^1212553523 is an apocalyptic number.

1212553523 is a deficient number, since it is larger than the sum of its proper divisors (1).

1212553523 is an equidigital number, since it uses as much as digits as its factorization.

1212553523 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9000, while the sum is 29.

The square root of 1212553523 is about 34821.7392299695. The cubic root of 1212553523 is about 1066.3513078262.

The spelling of 1212553523 in words is "one billion, two hundred twelve million, five hundred fifty-three thousand, five hundred twenty-three".