1210012531 has 16 divisors (see below), whose sum is σ = 1513667008. Its totient is φ = 941673600.

The previous prime is 1210012493. The next prime is 1210012567. The reversal of 1210012531 is 1352100121.

It is not a de Polignac number, because 1210012531 - 2⁷ = 1210012403 is a prime.

It is a super-2 number, since 2×1210012531² = 2928260650354051922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1210013531) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103440 + ... + 114541.

It is an arithmetic number, because the mean of its divisors is an integer number (94604188).

Almost surely, 2^1210012531 is an apocalyptic number.

1210012531 is a deficient number, since it is larger than the sum of its proper divisors (303654477).

1210012531 is a wasteful number, since it uses less digits than its factorization.

1210012531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218062.

The product of its (nonzero) digits is 60, while the sum is 16.

The square root of 1210012531 is about 34785.2343818466. The cubic root of 1210012531 is about 1065.6059152833.

Adding to 1210012531 its reverse (1352100121), we get a palindrome (2562112652).

The spelling of 1210012531 in words is "one billion, two hundred ten million, twelve thousand, five hundred thirty-one".