1261237132502 has 8 divisors (see below), whose sum is σ = 1891922844312. Its totient is φ = 630596184400.

The previous prime is 1261237132501. The next prime is 1261237132511. The reversal of 1261237132502 is 2052317321621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1261237132501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11120399 + ... + 11233242.

It is an arithmetic number, because the mean of its divisors is an integer number (236490355539).

Almost surely, 2^{1261237132502} is an apocalyptic number.

1261237132502 is a deficient number, since it is larger than the sum of its proper divisors (630685711810).

1261237132502 is a wasteful number, since it uses less digits than its factorization.

1261237132502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22381854.

The product of its (nonzero) digits is 30240, while the sum is 35.

The spelling of 1261237132502 in words is "one trillion, two hundred sixty-one billion, two hundred thirty-seven million, one hundred thirty-two thousand, five hundred two".